Home / 486,943.20-730,451.49-145,359.65

Finding the Fourth Proportional to 486,943.20, 730,451.49 and 145,359.65

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Solution

The fourth proportional to 486,943.20, 730,451.49 and 145,359.65 is: 218,050.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,943.20 : 730,451.49 = 145,359.65 : x
  2. Step 2: Convert to fraction form
    486,943.20/730,451.49 = 145,359.65/x
  3. Step 3: Cross multiply
    486,943.20x = 730,451.49 × 145,359.65
  4. Step 4: Simplify right side
    486,943.20x = 106,178,169,276.12
  5. Step 5: Solve for x
    x = 106,178,169,276.12/486,943.20
  6. Step 6: Final answer
    x = 218,050.42

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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.