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Finding the Fourth Proportional to 717,529.16, 989,127.24 and 459,369.20

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Solution

The fourth proportional to 717,529.16, 989,127.24 and 459,369.20 is: 633,248.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,529.16 : 989,127.24 = 459,369.20 : x
  2. Step 2: Convert to fraction form
    717,529.16/989,127.24 = 459,369.20/x
  3. Step 3: Cross multiply
    717,529.16x = 989,127.24 × 459,369.20
  4. Step 4: Simplify right side
    717,529.16x = 454,374,588,937.01
  5. Step 5: Solve for x
    x = 454,374,588,937.01/717,529.16
  6. Step 6: Final answer
    x = 633,248.95

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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.