Home / 885,121.40-1,221,257.58-503,118.11

Finding the Fourth Proportional to 885,121.40, 1,221,257.58 and 503,118.11

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Solution

The fourth proportional to 885,121.40, 1,221,257.58 and 503,118.11 is: 694,183.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,121.40 : 1,221,257.58 = 503,118.11 : x
  2. Step 2: Convert to fraction form
    885,121.40/1,221,257.58 = 503,118.11/x
  3. Step 3: Cross multiply
    885,121.40x = 1,221,257.58 × 503,118.11
  4. Step 4: Simplify right side
    885,121.40x = 614,436,805,472.77
  5. Step 5: Solve for x
    x = 614,436,805,472.77/885,121.40
  6. Step 6: Final answer
    x = 694,183.65

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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.