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Finding the Fourth Proportional to 480,550.20, 720,834.90 and 125,542.20

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Solution

The fourth proportional to 480,550.20, 720,834.90 and 125,542.20 is: 188,315.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,550.20 : 720,834.90 = 125,542.20 : x
  2. Step 2: Convert to fraction form
    480,550.20/720,834.90 = 125,542.20/x
  3. Step 3: Cross multiply
    480,550.20x = 720,834.90 × 125,542.20
  4. Step 4: Simplify right side
    480,550.20x = 90,495,199,182.78
  5. Step 5: Solve for x
    x = 90,495,199,182.78/480,550.20
  6. Step 6: Final answer
    x = 188,315.81

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1.5x scale

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.