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Finding the Fourth Proportional to 576,265.20, 862,648.20 and 513,279.60

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Solution

The fourth proportional to 576,265.20, 862,648.20 and 513,279.60 is: 768,361.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,265.20 : 862,648.20 = 513,279.60 : x
  2. Step 2: Convert to fraction form
    576,265.20/862,648.20 = 513,279.60/x
  3. Step 3: Cross multiply
    576,265.20x = 862,648.20 × 513,279.60
  4. Step 4: Simplify right side
    576,265.20x = 442,779,723,036.72
  5. Step 5: Solve for x
    x = 442,779,723,036.72/576,265.20
  6. Step 6: Final answer
    x = 768,361.03

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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.