Home / 820,983.38-1,132,976.31-458,394.98

Finding the Fourth Proportional to 820,983.38, 1,132,976.31 and 458,394.98

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Solution

The fourth proportional to 820,983.38, 1,132,976.31 and 458,394.98 is: 632,595.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,983.38 : 1,132,976.31 = 458,394.98 : x
  2. Step 2: Convert to fraction form
    820,983.38/1,132,976.31 = 458,394.98/x
  3. Step 3: Cross multiply
    820,983.38x = 1,132,976.31 × 458,394.98
  4. Step 4: Simplify right side
    820,983.38x = 519,350,652,962.92
  5. Step 5: Solve for x
    x = 519,350,652,962.92/820,983.38
  6. Step 6: Final answer
    x = 632,595.82

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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.