Home / 663,169.40-995,140.08-278,890.64

Finding the Fourth Proportional to 663,169.40, 995,140.08 and 278,890.64

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Solution

The fourth proportional to 663,169.40, 995,140.08 and 278,890.64 is: 418,498.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,169.40 : 995,140.08 = 278,890.64 : x
  2. Step 2: Convert to fraction form
    663,169.40/995,140.08 = 278,890.64/x
  3. Step 3: Cross multiply
    663,169.40x = 995,140.08 × 278,890.64
  4. Step 4: Simplify right side
    663,169.40x = 277,535,253,800.85
  5. Step 5: Solve for x
    x = 277,535,253,800.85/663,169.40
  6. Step 6: Final answer
    x = 418,498.28

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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.