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Finding the Fourth Proportional to 758.52, 1,137.78 and 604.76

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Solution

The fourth proportional to 758.52, 1,137.78 and 604.76 is: 907.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    758.52 : 1,137.78 = 604.76 : x
  2. Step 2: Convert to fraction form
    758.52/1,137.78 = 604.76/x
  3. Step 3: Cross multiply
    758.52x = 1,137.78 × 604.76
  4. Step 4: Simplify right side
    758.52x = 688,078.14
  5. Step 5: Solve for x
    x = 688,078.14/758.52
  6. Step 6: Final answer
    x = 907.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.