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Finding the Fourth Proportional to 372,965.20, 558,135.60 and 341,472.40

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Solution

The fourth proportional to 372,965.20, 558,135.60 and 341,472.40 is: 511,007.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,965.20 : 558,135.60 = 341,472.40 : x
  2. Step 2: Convert to fraction form
    372,965.20/558,135.60 = 341,472.40/x
  3. Step 3: Cross multiply
    372,965.20x = 558,135.60 × 341,472.40
  4. Step 4: Simplify right side
    372,965.20x = 190,587,902,857.44
  5. Step 5: Solve for x
    x = 190,587,902,857.44/372,965.20
  6. Step 6: Final answer
    x = 511,007.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.