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Finding the Fourth Proportional to 617.76, 923.52 and 526.56

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Solution

The fourth proportional to 617.76, 923.52 and 526.56 is: 787.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.76 : 923.52 = 526.56 : x
  2. Step 2: Convert to fraction form
    617.76/923.52 = 526.56/x
  3. Step 3: Cross multiply
    617.76x = 923.52 × 526.56
  4. Step 4: Simplify right side
    617.76x = 486,288.69
  5. Step 5: Solve for x
    x = 486,288.69/617.76
  6. Step 6: Final answer
    x = 787.18

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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.