Home / 648,189.20-972,283.80-608,823.20

Finding the Fourth Proportional to 648,189.20, 972,283.80 and 608,823.20

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Solution

The fourth proportional to 648,189.20, 972,283.80 and 608,823.20 is: 913,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,189.20 : 972,283.80 = 608,823.20 : x
  2. Step 2: Convert to fraction form
    648,189.20/972,283.80 = 608,823.20/x
  3. Step 3: Cross multiply
    648,189.20x = 972,283.80 × 608,823.20
  4. Step 4: Simplify right side
    648,189.20x = 591,948,934,424.16
  5. Step 5: Solve for x
    x = 591,948,934,424.16/648,189.20
  6. Step 6: Final answer
    x = 913,234.80

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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.