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Finding the Fourth Proportional to 617.15, 921.32 and 595.52

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Solution

The fourth proportional to 617.15, 921.32 and 595.52 is: 889.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    617.15 : 921.32 = 595.52 : x
  2. Step 2: Convert to fraction form
    617.15/921.32 = 595.52/x
  3. Step 3: Cross multiply
    617.15x = 921.32 × 595.52
  4. Step 4: Simplify right side
    617.15x = 548,664.49
  5. Step 5: Solve for x
    x = 548,664.49/617.15
  6. Step 6: Final answer
    x = 889.03

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1.5x scale

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.