Home / 663,102.38-995,039.53-278,823.44

Finding the Fourth Proportional to 663,102.38, 995,039.53 and 278,823.44

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Solution

The fourth proportional to 663,102.38, 995,039.53 and 278,823.44 is: 418,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,102.38 : 995,039.53 = 278,823.44 : x
  2. Step 2: Convert to fraction form
    663,102.38/995,039.53 = 278,823.44/x
  3. Step 3: Cross multiply
    663,102.38x = 995,039.53 × 278,823.44
  4. Step 4: Simplify right side
    663,102.38x = 277,440,344,690.58
  5. Step 5: Solve for x
    x = 277,440,344,690.58/663,102.38
  6. Step 6: Final answer
    x = 418,397.45

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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.