Home / 816,278.52-1,126,291.50-493,925.88

Finding the Fourth Proportional to 816,278.52, 1,126,291.50 and 493,925.88

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Solution

The fourth proportional to 816,278.52, 1,126,291.50 and 493,925.88 is: 681,513.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,278.52 : 1,126,291.50 = 493,925.88 : x
  2. Step 2: Convert to fraction form
    816,278.52/1,126,291.50 = 493,925.88/x
  3. Step 3: Cross multiply
    816,278.52x = 1,126,291.50 × 493,925.88
  4. Step 4: Simplify right side
    816,278.52x = 556,304,520,274.02
  5. Step 5: Solve for x
    x = 556,304,520,274.02/816,278.52
  6. Step 6: Final answer
    x = 681,513.12

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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.