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Finding the Fourth Proportional to 537,672.70, 806,509.05 and 479,611.90

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Solution

The fourth proportional to 537,672.70, 806,509.05 and 479,611.90 is: 719,417.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,672.70 : 806,509.05 = 479,611.90 : x
  2. Step 2: Convert to fraction form
    537,672.70/806,509.05 = 479,611.90/x
  3. Step 3: Cross multiply
    537,672.70x = 806,509.05 × 479,611.90
  4. Step 4: Simplify right side
    537,672.70x = 386,811,337,837.70
  5. Step 5: Solve for x
    x = 386,811,337,837.70/537,672.70
  6. Step 6: Final answer
    x = 719,417.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.