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Finding the Fourth Proportional to 710.17, 1,064.48 and 344.14

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Solution

The fourth proportional to 710.17, 1,064.48 and 344.14 is: 515.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.17 : 1,064.48 = 344.14 : x
  2. Step 2: Convert to fraction form
    710.17/1,064.48 = 344.14/x
  3. Step 3: Cross multiply
    710.17x = 1,064.48 × 344.14
  4. Step 4: Simplify right side
    710.17x = 366,325.77
  5. Step 5: Solve for x
    x = 366,325.77/710.17
  6. Step 6: Final answer
    x = 515.83

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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.