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Finding the Fourth Proportional to 646,002.54, 891,512.73 and 374,082.30

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Solution

The fourth proportional to 646,002.54, 891,512.73 and 374,082.30 is: 516,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,002.54 : 891,512.73 = 374,082.30 : x
  2. Step 2: Convert to fraction form
    646,002.54/891,512.73 = 374,082.30/x
  3. Step 3: Cross multiply
    646,002.54x = 891,512.73 × 374,082.30
  4. Step 4: Simplify right side
    646,002.54x = 333,499,132,517.68
  5. Step 5: Solve for x
    x = 333,499,132,517.68/646,002.54
  6. Step 6: Final answer
    x = 516,250.50

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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.