Home / 723,822.82-1,086,288.50-521,321.66

Finding the Fourth Proportional to 723,822.82, 1,086,288.50 and 521,321.66

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Solution

The fourth proportional to 723,822.82, 1,086,288.50 and 521,321.66 is: 782,381.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,822.82 : 1,086,288.50 = 521,321.66 : x
  2. Step 2: Convert to fraction form
    723,822.82/1,086,288.50 = 521,321.66/x
  3. Step 3: Cross multiply
    723,822.82x = 1,086,288.50 × 521,321.66
  4. Step 4: Simplify right side
    723,822.82x = 566,305,724,058.91
  5. Step 5: Solve for x
    x = 566,305,724,058.91/723,822.82
  6. Step 6: Final answer
    x = 782,381.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.