Home / 753,542.73-1,039,884.78-409,375.91

Finding the Fourth Proportional to 753,542.73, 1,039,884.78 and 409,375.91

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Solution

The fourth proportional to 753,542.73, 1,039,884.78 and 409,375.91 is: 564,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,542.73 : 1,039,884.78 = 409,375.91 : x
  2. Step 2: Convert to fraction form
    753,542.73/1,039,884.78 = 409,375.91/x
  3. Step 3: Cross multiply
    753,542.73x = 1,039,884.78 × 409,375.91
  4. Step 4: Simplify right side
    753,542.73x = 425,703,772,908.23
  5. Step 5: Solve for x
    x = 425,703,772,908.23/753,542.73
  6. Step 6: Final answer
    x = 564,936.47

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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.