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Finding the Fourth Proportional to 502,457.68, 693,422.60 and 287,592.83

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Solution

The fourth proportional to 502,457.68, 693,422.60 and 287,592.83 is: 396,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,457.68 : 693,422.60 = 287,592.83 : x
  2. Step 2: Convert to fraction form
    502,457.68/693,422.60 = 287,592.83/x
  3. Step 3: Cross multiply
    502,457.68x = 693,422.60 × 287,592.83
  4. Step 4: Simplify right side
    502,457.68x = 199,423,367,919.96
  5. Step 5: Solve for x
    x = 199,423,367,919.96/502,457.68
  6. Step 6: Final answer
    x = 396,895.85

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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.