Home / 500,077.20-690,100.92-273,720

Finding the Fourth Proportional to 500,077.20, 690,100.92 and 273,720

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Solution

The fourth proportional to 500,077.20, 690,100.92 and 273,720 is: 377,730.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,077.20 : 690,100.92 = 273,720 : x
  2. Step 2: Convert to fraction form
    500,077.20/690,100.92 = 273,720/x
  3. Step 3: Cross multiply
    500,077.20x = 690,100.92 × 273,720
  4. Step 4: Simplify right side
    500,077.20x = 188,894,423,822.40
  5. Step 5: Solve for x
    x = 188,894,423,822.40/500,077.20
  6. Step 6: Final answer
    x = 377,730.53

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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.