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Finding the Fourth Proportional to 576,024.70, 864,037.05 and 520,912.30

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Solution

The fourth proportional to 576,024.70, 864,037.05 and 520,912.30 is: 781,368.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,024.70 : 864,037.05 = 520,912.30 : x
  2. Step 2: Convert to fraction form
    576,024.70/864,037.05 = 520,912.30/x
  3. Step 3: Cross multiply
    576,024.70x = 864,037.05 × 520,912.30
  4. Step 4: Simplify right side
    576,024.70x = 450,087,527,000.72
  5. Step 5: Solve for x
    x = 450,087,527,000.72/576,024.70
  6. Step 6: Final answer
    x = 781,368.45

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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.