Home / 739,960.27-1,021,148.31-400,428.52

Finding the Fourth Proportional to 739,960.27, 1,021,148.31 and 400,428.52

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Solution

The fourth proportional to 739,960.27, 1,021,148.31 and 400,428.52 is: 552,593.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,960.27 : 1,021,148.31 = 400,428.52 : x
  2. Step 2: Convert to fraction form
    739,960.27/1,021,148.31 = 400,428.52/x
  3. Step 3: Cross multiply
    739,960.27x = 1,021,148.31 × 400,428.52
  4. Step 4: Simplify right side
    739,960.27x = 408,896,906,473.80
  5. Step 5: Solve for x
    x = 408,896,906,473.80/739,960.27
  6. Step 6: Final answer
    x = 552,593.06

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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.