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Finding the Fourth Proportional to 630.76, 939.80 and 595.39

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Solution

The fourth proportional to 630.76, 939.80 and 595.39 is: 887.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.76 : 939.80 = 595.39 : x
  2. Step 2: Convert to fraction form
    630.76/939.80 = 595.39/x
  3. Step 3: Cross multiply
    630.76x = 939.80 × 595.39
  4. Step 4: Simplify right side
    630.76x = 559,539.85
  5. Step 5: Solve for x
    x = 559,539.85/630.76
  6. Step 6: Final answer
    x = 887.10

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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.