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Finding the Fourth Proportional to 717,432.12, 988,994.61 and 459,272.16

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Solution

The fourth proportional to 717,432.12, 988,994.61 and 459,272.16 is: 633,115.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,432.12 : 988,994.61 = 459,272.16 : x
  2. Step 2: Convert to fraction form
    717,432.12/988,994.61 = 459,272.16/x
  3. Step 3: Cross multiply
    717,432.12x = 988,994.61 × 459,272.16
  4. Step 4: Simplify right side
    717,432.12x = 454,217,690,763.06
  5. Step 5: Solve for x
    x = 454,217,690,763.06/717,432.12
  6. Step 6: Final answer
    x = 633,115.91

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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.