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Finding the Fourth Proportional to 650,665.32, 897,899.67 and 378,727.38

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Solution

The fourth proportional to 650,665.32, 897,899.67 and 378,727.38 is: 522,633.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,665.32 : 897,899.67 = 378,727.38 : x
  2. Step 2: Convert to fraction form
    650,665.32/897,899.67 = 378,727.38/x
  3. Step 3: Cross multiply
    650,665.32x = 897,899.67 × 378,727.38
  4. Step 4: Simplify right side
    650,665.32x = 340,059,189,521.97
  5. Step 5: Solve for x
    x = 340,059,189,521.97/650,665.32
  6. Step 6: Final answer
    x = 522,633.03

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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.