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Finding the Fourth Proportional to 616.98, 921.85 and 595.45

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Solution

The fourth proportional to 616.98, 921.85 and 595.45 is: 889.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    616.98 : 921.85 = 595.45 : x
  2. Step 2: Convert to fraction form
    616.98/921.85 = 595.45/x
  3. Step 3: Cross multiply
    616.98x = 921.85 × 595.45
  4. Step 4: Simplify right side
    616.98x = 548,915.58
  5. Step 5: Solve for x
    x = 548,915.58/616.98
  6. Step 6: Final answer
    x = 889.68

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Find fourth proportional to 308.49, 460.93 and 297.73
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Double scale
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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.