Home / 852,206.40-1,278,309.60-319,744.80

Finding the Fourth Proportional to 852,206.40, 1,278,309.60 and 319,744.80

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Solution

The fourth proportional to 852,206.40, 1,278,309.60 and 319,744.80 is: 479,617.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,206.40 : 1,278,309.60 = 319,744.80 : x
  2. Step 2: Convert to fraction form
    852,206.40/1,278,309.60 = 319,744.80/x
  3. Step 3: Cross multiply
    852,206.40x = 1,278,309.60 × 319,744.80
  4. Step 4: Simplify right side
    852,206.40x = 408,732,847,390.08
  5. Step 5: Solve for x
    x = 408,732,847,390.08/852,206.40
  6. Step 6: Final answer
    x = 479,617.20

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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.