Home / 852,353.80-1,176,449.22-489,987.88

Finding the Fourth Proportional to 852,353.80, 1,176,449.22 and 489,987.88

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Solution

The fourth proportional to 852,353.80, 1,176,449.22 and 489,987.88 is: 676,298.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,353.80 : 1,176,449.22 = 489,987.88 : x
  2. Step 2: Convert to fraction form
    852,353.80/1,176,449.22 = 489,987.88/x
  3. Step 3: Cross multiply
    852,353.80x = 1,176,449.22 × 489,987.88
  4. Step 4: Simplify right side
    852,353.80x = 576,445,859,235.45
  5. Step 5: Solve for x
    x = 576,445,859,235.45/852,353.80
  6. Step 6: Final answer
    x = 676,298.81

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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.