Home / 874,340.12-1,206,379.27-492,366.80

Finding the Fourth Proportional to 874,340.12, 1,206,379.27 and 492,366.80

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Solution

The fourth proportional to 874,340.12, 1,206,379.27 and 492,366.80 is: 679,347.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,340.12 : 1,206,379.27 = 492,366.80 : x
  2. Step 2: Convert to fraction form
    874,340.12/1,206,379.27 = 492,366.80/x
  3. Step 3: Cross multiply
    874,340.12x = 1,206,379.27 × 492,366.80
  4. Step 4: Simplify right side
    874,340.12x = 593,981,104,387.64
  5. Step 5: Solve for x
    x = 593,981,104,387.64/874,340.12
  6. Step 6: Final answer
    x = 679,347.88

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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.