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Finding the Fourth Proportional to 442,872.60, 611,190.63 and 335,272.20

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Solution

The fourth proportional to 442,872.60, 611,190.63 and 335,272.20 is: 462,695.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,872.60 : 611,190.63 = 335,272.20 : x
  2. Step 2: Convert to fraction form
    442,872.60/611,190.63 = 335,272.20/x
  3. Step 3: Cross multiply
    442,872.60x = 611,190.63 × 335,272.20
  4. Step 4: Simplify right side
    442,872.60x = 204,915,227,139.49
  5. Step 5: Solve for x
    x = 204,915,227,139.49/442,872.60
  6. Step 6: Final answer
    x = 462,695.65

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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.