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Finding the Fourth Proportional to 934.62, 1,402.84 and 713.17

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Solution

The fourth proportional to 934.62, 1,402.84 and 713.17 is: 1,070.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    934.62 : 1,402.84 = 713.17 : x
  2. Step 2: Convert to fraction form
    934.62/1,402.84 = 713.17/x
  3. Step 3: Cross multiply
    934.62x = 1,402.84 × 713.17
  4. Step 4: Simplify right side
    934.62x = 1,000,465.13
  5. Step 5: Solve for x
    x = 1,000,465.13/934.62
  6. Step 6: Final answer
    x = 1,070.45

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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.