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Finding the Fourth Proportional to 619,342.32, 854,691.80 and 351,070.32

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Solution

The fourth proportional to 619,342.32, 854,691.80 and 351,070.32 is: 484,476.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,342.32 : 854,691.80 = 351,070.32 : x
  2. Step 2: Convert to fraction form
    619,342.32/854,691.80 = 351,070.32/x
  3. Step 3: Cross multiply
    619,342.32x = 854,691.80 × 351,070.32
  4. Step 4: Simplify right side
    619,342.32x = 300,056,923,727.38
  5. Step 5: Solve for x
    x = 300,056,923,727.38/619,342.32
  6. Step 6: Final answer
    x = 484,476.70

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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.