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Finding the Fourth Proportional to 637.32, 876.10 and 570.18

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Solution

The fourth proportional to 637.32, 876.10 and 570.18 is: 783.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.32 : 876.10 = 570.18 : x
  2. Step 2: Convert to fraction form
    637.32/876.10 = 570.18/x
  3. Step 3: Cross multiply
    637.32x = 876.10 × 570.18
  4. Step 4: Simplify right side
    637.32x = 499,534.70
  5. Step 5: Solve for x
    x = 499,534.70/637.32
  6. Step 6: Final answer
    x = 783.81

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.