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Finding the Fourth Proportional to 974.39, 1,344.70 and 601.10

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Solution

The fourth proportional to 974.39, 1,344.70 and 601.10 is: 829.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    974.39 : 1,344.70 = 601.10 : x
  2. Step 2: Convert to fraction form
    974.39/1,344.70 = 601.10/x
  3. Step 3: Cross multiply
    974.39x = 1,344.70 × 601.10
  4. Step 4: Simplify right side
    974.39x = 808,302.97
  5. Step 5: Solve for x
    x = 808,302.97/974.39
  6. Step 6: Final answer
    x = 829.55

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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.