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Finding the Fourth Proportional to 768,772.88, 1,060,972.17 and 429,306.74

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Solution

The fourth proportional to 768,772.88, 1,060,972.17 and 429,306.74 is: 592,479.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,772.88 : 1,060,972.17 = 429,306.74 : x
  2. Step 2: Convert to fraction form
    768,772.88/1,060,972.17 = 429,306.74/x
  3. Step 3: Cross multiply
    768,772.88x = 1,060,972.17 × 429,306.74
  4. Step 4: Simplify right side
    768,772.88x = 455,482,503,533.43
  5. Step 5: Solve for x
    x = 455,482,503,533.43/768,772.88
  6. Step 6: Final answer
    x = 592,479.93

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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.