Home / 753,286.82-1,039,543.31-409,129.46

Finding the Fourth Proportional to 753,286.82, 1,039,543.31 and 409,129.46

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Solution

The fourth proportional to 753,286.82, 1,039,543.31 and 409,129.46 is: 564,602.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,286.82 : 1,039,543.31 = 409,129.46 : x
  2. Step 2: Convert to fraction form
    753,286.82/1,039,543.31 = 409,129.46/x
  3. Step 3: Cross multiply
    753,286.82x = 1,039,543.31 × 409,129.46
  4. Step 4: Simplify right side
    753,286.82x = 425,307,793,620.12
  5. Step 5: Solve for x
    x = 425,307,793,620.12/753,286.82
  6. Step 6: Final answer
    x = 564,602.73

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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.