Home / 815,329.92-1,222,524-316,110.72

Finding the Fourth Proportional to 815,329.92, 1,222,524 and 316,110.72

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Solution

The fourth proportional to 815,329.92, 1,222,524 and 316,110.72 is: 473,983.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,329.92 : 1,222,524 = 316,110.72 : x
  2. Step 2: Convert to fraction form
    815,329.92/1,222,524 = 316,110.72/x
  3. Step 3: Cross multiply
    815,329.92x = 1,222,524 × 316,110.72
  4. Step 4: Simplify right side
    815,329.92x = 386,452,941,857.28
  5. Step 5: Solve for x
    x = 386,452,941,857.28/815,329.92
  6. Step 6: Final answer
    x = 473,983.52

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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.