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Finding the Fourth Proportional to 845.63, 1,167 and 472.70

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Solution

The fourth proportional to 845.63, 1,167 and 472.70 is: 652.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    845.63 : 1,167 = 472.70 : x
  2. Step 2: Convert to fraction form
    845.63/1,167 = 472.70/x
  3. Step 3: Cross multiply
    845.63x = 1,167 × 472.70
  4. Step 4: Simplify right side
    845.63x = 551,635.07
  5. Step 5: Solve for x
    x = 551,635.07/845.63
  6. Step 6: Final answer
    x = 652.34

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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.