Home / 648,016.40-972,024.60-490,552.40

Finding the Fourth Proportional to 648,016.40, 972,024.60 and 490,552.40

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Solution

The fourth proportional to 648,016.40, 972,024.60 and 490,552.40 is: 735,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,016.40 : 972,024.60 = 490,552.40 : x
  2. Step 2: Convert to fraction form
    648,016.40/972,024.60 = 490,552.40/x
  3. Step 3: Cross multiply
    648,016.40x = 972,024.60 × 490,552.40
  4. Step 4: Simplify right side
    648,016.40x = 476,829,000,389.04
  5. Step 5: Solve for x
    x = 476,829,000,389.04/648,016.40
  6. Step 6: Final answer
    x = 735,828.60

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Double scale
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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.