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Finding the Fourth Proportional to 576,491.80, 862,404.90 and 506,507.80

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Solution

The fourth proportional to 576,491.80, 862,404.90 and 506,507.80 is: 757,712.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,491.80 : 862,404.90 = 506,507.80 : x
  2. Step 2: Convert to fraction form
    576,491.80/862,404.90 = 506,507.80/x
  3. Step 3: Cross multiply
    576,491.80x = 862,404.90 × 506,507.80
  4. Step 4: Simplify right side
    576,491.80x = 436,814,808,608.22
  5. Step 5: Solve for x
    x = 436,814,808,608.22/576,491.80
  6. Step 6: Final answer
    x = 757,712.09

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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.