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Finding the Fourth Proportional to 527.01, 787.76 and 371.90

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Solution

The fourth proportional to 527.01, 787.76 and 371.90 is: 555.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    527.01 : 787.76 = 371.90 : x
  2. Step 2: Convert to fraction form
    527.01/787.76 = 371.90/x
  3. Step 3: Cross multiply
    527.01x = 787.76 × 371.90
  4. Step 4: Simplify right side
    527.01x = 292,962.15
  5. Step 5: Solve for x
    x = 292,962.15/527.01
  6. Step 6: Final answer
    x = 555.89

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.