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Finding the Fourth Proportional to 710.32, 1,064.80 and 537.18

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Solution

The fourth proportional to 710.32, 1,064.80 and 537.18 is: 805.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    710.32 : 1,064.80 = 537.18 : x
  2. Step 2: Convert to fraction form
    710.32/1,064.80 = 537.18/x
  3. Step 3: Cross multiply
    710.32x = 1,064.80 × 537.18
  4. Step 4: Simplify right side
    710.32x = 571,988.91
  5. Step 5: Solve for x
    x = 571,988.91/710.32
  6. Step 6: Final answer
    x = 805.26

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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.