Home / 815,963.11-1,126,008.65-453,387.92

Finding the Fourth Proportional to 815,963.11, 1,126,008.65 and 453,387.92

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Solution

The fourth proportional to 815,963.11, 1,126,008.65 and 453,387.92 is: 625,663.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,963.11 : 1,126,008.65 = 453,387.92 : x
  2. Step 2: Convert to fraction form
    815,963.11/1,126,008.65 = 453,387.92/x
  3. Step 3: Cross multiply
    815,963.11x = 1,126,008.65 × 453,387.92
  4. Step 4: Simplify right side
    815,963.11x = 510,518,715,228.94
  5. Step 5: Solve for x
    x = 510,518,715,228.94/815,963.11
  6. Step 6: Final answer
    x = 625,663.97

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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.