Home / 722,542.24-997,108.16-400,273.28

Finding the Fourth Proportional to 722,542.24, 997,108.16 and 400,273.28

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Solution

The fourth proportional to 722,542.24, 997,108.16 and 400,273.28 is: 552,377.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,542.24 : 997,108.16 = 400,273.28 : x
  2. Step 2: Convert to fraction form
    722,542.24/997,108.16 = 400,273.28/x
  3. Step 3: Cross multiply
    722,542.24x = 997,108.16 × 400,273.28
  4. Step 4: Simplify right side
    722,542.24x = 399,115,753,717.97
  5. Step 5: Solve for x
    x = 399,115,753,717.97/722,542.24
  6. Step 6: Final answer
    x = 552,377.05

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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.