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Finding the Fourth Proportional to 576,104.20, 862,406.70 and 513,118.60

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Solution

The fourth proportional to 576,104.20, 862,406.70 and 513,118.60 is: 768,119.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,104.20 : 862,406.70 = 513,118.60 : x
  2. Step 2: Convert to fraction form
    576,104.20/862,406.70 = 513,118.60/x
  3. Step 3: Cross multiply
    576,104.20x = 862,406.70 × 513,118.60
  4. Step 4: Simplify right side
    576,104.20x = 442,516,918,534.62
  5. Step 5: Solve for x
    x = 442,516,918,534.62/576,104.20
  6. Step 6: Final answer
    x = 768,119.58

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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.