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Finding the Fourth Proportional to 845.61, 1,166.97 and 472.58

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Solution

The fourth proportional to 845.61, 1,166.97 and 472.58 is: 652.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.61 : 1,166.97 = 472.58 : x
  2. Step 2: Convert to fraction form
    845.61/1,166.97 = 472.58/x
  3. Step 3: Cross multiply
    845.61x = 1,166.97 × 472.58
  4. Step 4: Simplify right side
    845.61x = 551,493.56
  5. Step 5: Solve for x
    x = 551,493.56/845.61
  6. Step 6: Final answer
    x = 652.19

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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.