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Finding the Fourth Proportional to 762,957.72, 1,052,758.62 and 440,616.60

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Solution

The fourth proportional to 762,957.72, 1,052,758.62 and 440,616.60 is: 607,979.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,957.72 : 1,052,758.62 = 440,616.60 : x
  2. Step 2: Convert to fraction form
    762,957.72/1,052,758.62 = 440,616.60/x
  3. Step 3: Cross multiply
    762,957.72x = 1,052,758.62 × 440,616.60
  4. Step 4: Simplify right side
    762,957.72x = 463,862,923,765.09
  5. Step 5: Solve for x
    x = 463,862,923,765.09/762,957.72
  6. Step 6: Final answer
    x = 607,979.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.