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Finding the Fourth Proportional to 539,747.28, 744,854.40 and 298,025.28

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Solution

The fourth proportional to 539,747.28, 744,854.40 and 298,025.28 is: 411,276.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,747.28 : 744,854.40 = 298,025.28 : x
  2. Step 2: Convert to fraction form
    539,747.28/744,854.40 = 298,025.28/x
  3. Step 3: Cross multiply
    539,747.28x = 744,854.40 × 298,025.28
  4. Step 4: Simplify right side
    539,747.28x = 221,985,441,119.23
  5. Step 5: Solve for x
    x = 221,985,441,119.23/539,747.28
  6. Step 6: Final answer
    x = 411,276.63

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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.