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Finding the Fourth Proportional to 576,441.28, 862,890.24 and 491,410.72

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Solution

The fourth proportional to 576,441.28, 862,890.24 and 491,410.72 is: 735,605.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,441.28 : 862,890.24 = 491,410.72 : x
  2. Step 2: Convert to fraction form
    576,441.28/862,890.24 = 491,410.72/x
  3. Step 3: Cross multiply
    576,441.28x = 862,890.24 × 491,410.72
  4. Step 4: Simplify right side
    576,441.28x = 424,033,514,119.37
  5. Step 5: Solve for x
    x = 424,033,514,119.37/576,441.28
  6. Step 6: Final answer
    x = 735,605.74

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1.5x scale

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.