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Finding the Fourth Proportional to 845.72, 1,167.07 and 472.71

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Solution

The fourth proportional to 845.72, 1,167.07 and 472.71 is: 652.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.72 : 1,167.07 = 472.71 : x
  2. Step 2: Convert to fraction form
    845.72/1,167.07 = 472.71/x
  3. Step 3: Cross multiply
    845.72x = 1,167.07 × 472.71
  4. Step 4: Simplify right side
    845.72x = 551,685.66
  5. Step 5: Solve for x
    x = 551,685.66/845.72
  6. Step 6: Final answer
    x = 652.33

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.