Home / 868,142.70-1,198,086.71-486,166.14

Finding the Fourth Proportional to 868,142.70, 1,198,086.71 and 486,166.14

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Solution

The fourth proportional to 868,142.70, 1,198,086.71 and 486,166.14 is: 670,937.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,142.70 : 1,198,086.71 = 486,166.14 : x
  2. Step 2: Convert to fraction form
    868,142.70/1,198,086.71 = 486,166.14/x
  3. Step 3: Cross multiply
    868,142.70x = 1,198,086.71 × 486,166.14
  4. Step 4: Simplify right side
    868,142.70x = 582,469,191,186.00
  5. Step 5: Solve for x
    x = 582,469,191,186.00/868,142.70
  6. Step 6: Final answer
    x = 670,937.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.