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Finding the Fourth Proportional to 653,894.13, 980,859.60 and 180,579.49

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Solution

The fourth proportional to 653,894.13, 980,859.60 and 180,579.49 is: 270,874.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,894.13 : 980,859.60 = 180,579.49 : x
  2. Step 2: Convert to fraction form
    653,894.13/980,859.60 = 180,579.49/x
  3. Step 3: Cross multiply
    653,894.13x = 980,859.60 × 180,579.49
  4. Step 4: Simplify right side
    653,894.13x = 177,123,126,329.60
  5. Step 5: Solve for x
    x = 177,123,126,329.60/653,894.13
  6. Step 6: Final answer
    x = 270,874.32

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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.