Home / 648,095.40-972,143.10-490,631.40

Finding the Fourth Proportional to 648,095.40, 972,143.10 and 490,631.40

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Solution

The fourth proportional to 648,095.40, 972,143.10 and 490,631.40 is: 735,947.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,095.40 : 972,143.10 = 490,631.40 : x
  2. Step 2: Convert to fraction form
    648,095.40/972,143.10 = 490,631.40/x
  3. Step 3: Cross multiply
    648,095.40x = 972,143.10 × 490,631.40
  4. Step 4: Simplify right side
    648,095.40x = 476,963,930,153.34
  5. Step 5: Solve for x
    x = 476,963,930,153.34/648,095.40
  6. Step 6: Final answer
    x = 735,947.10

Related Problems

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Half scale
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Double scale
Find fourth proportional to 648,096.40, 972,144.60 and 490,632.40
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.