Home / 915.04-1,263.30-566.20

Finding the Fourth Proportional to 915.04, 1,263.30 and 566.20

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Solution

The fourth proportional to 915.04, 1,263.30 and 566.20 is: 781.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.04 : 1,263.30 = 566.20 : x
  2. Step 2: Convert to fraction form
    915.04/1,263.30 = 566.20/x
  3. Step 3: Cross multiply
    915.04x = 1,263.30 × 566.20
  4. Step 4: Simplify right side
    915.04x = 715,280.46
  5. Step 5: Solve for x
    x = 715,280.46/915.04
  6. Step 6: Final answer
    x = 781.69

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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.