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Finding the Fourth Proportional to 1,234.94, 1,851.08 and 617.42

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Solution

The fourth proportional to 1,234.94, 1,851.08 and 617.42 is: 925.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,234.94 : 1,851.08 = 617.42 : x
  2. Step 2: Convert to fraction form
    1,234.94/1,851.08 = 617.42/x
  3. Step 3: Cross multiply
    1,234.94x = 1,851.08 × 617.42
  4. Step 4: Simplify right side
    1,234.94x = 1,142,890.73
  5. Step 5: Solve for x
    x = 1,142,890.73/1,234.94
  6. Step 6: Final answer
    x = 925.46

Related Problems

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.