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Finding the Fourth Proportional to 691.30, 1,037.32 and 600.64

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Solution

The fourth proportional to 691.30, 1,037.32 and 600.64 is: 901.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    691.30 : 1,037.32 = 600.64 : x
  2. Step 2: Convert to fraction form
    691.30/1,037.32 = 600.64/x
  3. Step 3: Cross multiply
    691.30x = 1,037.32 × 600.64
  4. Step 4: Simplify right side
    691.30x = 623,055.88
  5. Step 5: Solve for x
    x = 623,055.88/691.30
  6. Step 6: Final answer
    x = 901.28

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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.