Home / 815,132.16-1,222,625.76-282,641.28

Finding the Fourth Proportional to 815,132.16, 1,222,625.76 and 282,641.28

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Solution

The fourth proportional to 815,132.16, 1,222,625.76 and 282,641.28 is: 423,936.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,132.16 : 1,222,625.76 = 282,641.28 : x
  2. Step 2: Convert to fraction form
    815,132.16/1,222,625.76 = 282,641.28/x
  3. Step 3: Cross multiply
    815,132.16x = 1,222,625.76 × 282,641.28
  4. Step 4: Simplify right side
    815,132.16x = 345,564,509,767.37
  5. Step 5: Solve for x
    x = 345,564,509,767.37/815,132.16
  6. Step 6: Final answer
    x = 423,936.79

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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.