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Finding the Fourth Proportional to 1,057.88, 1,459.88 and 616.04

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Solution

The fourth proportional to 1,057.88, 1,459.88 and 616.04 is: 850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,057.88 : 1,459.88 = 616.04 : x
  2. Step 2: Convert to fraction form
    1,057.88/1,459.88 = 616.04/x
  3. Step 3: Cross multiply
    1,057.88x = 1,459.88 × 616.04
  4. Step 4: Simplify right side
    1,057.88x = 899,344.48
  5. Step 5: Solve for x
    x = 899,344.48/1,057.88
  6. Step 6: Final answer
    x = 850.14

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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.