Home / 663,101.38-995,038.03-278,822.44

Finding the Fourth Proportional to 663,101.38, 995,038.03 and 278,822.44

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Solution

The fourth proportional to 663,101.38, 995,038.03 and 278,822.44 is: 418,395.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,101.38 : 995,038.03 = 278,822.44 : x
  2. Step 2: Convert to fraction form
    663,101.38/995,038.03 = 278,822.44/x
  3. Step 3: Cross multiply
    663,101.38x = 995,038.03 × 278,822.44
  4. Step 4: Simplify right side
    663,101.38x = 277,438,931,417.39
  5. Step 5: Solve for x
    x = 277,438,931,417.39/663,101.38
  6. Step 6: Final answer
    x = 418,395.95

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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.