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Finding the Fourth Proportional to 915.04, 1,261.92 and 604

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Solution

The fourth proportional to 915.04, 1,261.92 and 604 is: 832.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    915.04 : 1,261.92 = 604 : x
  2. Step 2: Convert to fraction form
    915.04/1,261.92 = 604/x
  3. Step 3: Cross multiply
    915.04x = 1,261.92 × 604
  4. Step 4: Simplify right side
    915.04x = 762,199.68
  5. Step 5: Solve for x
    x = 762,199.68/915.04
  6. Step 6: Final answer
    x = 832.97

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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.