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Finding the Fourth Proportional to 721,230.76, 996,316.50 and 656,592.04

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Solution

The fourth proportional to 721,230.76, 996,316.50 and 656,592.04 is: 907,023.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,230.76 : 996,316.50 = 656,592.04 : x
  2. Step 2: Convert to fraction form
    721,230.76/996,316.50 = 656,592.04/x
  3. Step 3: Cross multiply
    721,230.76x = 996,316.50 × 656,592.04
  4. Step 4: Simplify right side
    721,230.76x = 654,173,483,220.66
  5. Step 5: Solve for x
    x = 654,173,483,220.66/721,230.76
  6. Step 6: Final answer
    x = 907,023.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.