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Finding the Fourth Proportional to 721,230.26, 996,315.81 and 656,591.54

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Solution

The fourth proportional to 721,230.26, 996,315.81 and 656,591.54 is: 907,023.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,230.26 : 996,315.81 = 656,591.54 : x
  2. Step 2: Convert to fraction form
    721,230.26/996,315.81 = 656,591.54/x
  3. Step 3: Cross multiply
    721,230.26x = 996,315.81 × 656,591.54
  4. Step 4: Simplify right side
    721,230.26x = 654,172,532,014.25
  5. Step 5: Solve for x
    x = 654,172,532,014.25/721,230.26
  6. Step 6: Final answer
    x = 907,023.14

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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.