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Finding the Fourth Proportional to 537,872.90, 806,809.35 and 479,812.10

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Solution

The fourth proportional to 537,872.90, 806,809.35 and 479,812.10 is: 719,718.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,872.90 : 806,809.35 = 479,812.10 : x
  2. Step 2: Convert to fraction form
    537,872.90/806,809.35 = 479,812.10/x
  3. Step 3: Cross multiply
    537,872.90x = 806,809.35 × 479,812.10
  4. Step 4: Simplify right side
    537,872.90x = 387,116,888,523.14
  5. Step 5: Solve for x
    x = 387,116,888,523.14/537,872.90
  6. Step 6: Final answer
    x = 719,718.15

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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.