Home / 816,472.43-1,126,770.38-453,902.32

Finding the Fourth Proportional to 816,472.43, 1,126,770.38 and 453,902.32

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Solution

The fourth proportional to 816,472.43, 1,126,770.38 and 453,902.32 is: 626,406.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,472.43 : 1,126,770.38 = 453,902.32 : x
  2. Step 2: Convert to fraction form
    816,472.43/1,126,770.38 = 453,902.32/x
  3. Step 3: Cross multiply
    816,472.43x = 1,126,770.38 × 453,902.32
  4. Step 4: Simplify right side
    816,472.43x = 511,443,689,589.28
  5. Step 5: Solve for x
    x = 511,443,689,589.28/816,472.43
  6. Step 6: Final answer
    x = 626,406.56

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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.