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Finding the Fourth Proportional to 539,620.76, 744,657.13 and 297,898.15

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Solution

The fourth proportional to 539,620.76, 744,657.13 and 297,898.15 is: 411,088.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,620.76 : 744,657.13 = 297,898.15 : x
  2. Step 2: Convert to fraction form
    539,620.76/744,657.13 = 297,898.15/x
  3. Step 3: Cross multiply
    539,620.76x = 744,657.13 × 297,898.15
  4. Step 4: Simplify right side
    539,620.76x = 221,831,981,411.31
  5. Step 5: Solve for x
    x = 221,831,981,411.31/539,620.76
  6. Step 6: Final answer
    x = 411,088.67

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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.