Home / 663,100.38-995,036.53-278,821.44

Finding the Fourth Proportional to 663,100.38, 995,036.53 and 278,821.44

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Solution

The fourth proportional to 663,100.38, 995,036.53 and 278,821.44 is: 418,394.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,100.38 : 995,036.53 = 278,821.44 : x
  2. Step 2: Convert to fraction form
    663,100.38/995,036.53 = 278,821.44/x
  3. Step 3: Cross multiply
    663,100.38x = 995,036.53 × 278,821.44
  4. Step 4: Simplify right side
    663,100.38x = 277,437,518,147.20
  5. Step 5: Solve for x
    x = 277,437,518,147.20/663,100.38
  6. Step 6: Final answer
    x = 418,394.45

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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.