Home / 780,217.92-1,170,367.20-247,780.80

Finding the Fourth Proportional to 780,217.92, 1,170,367.20 and 247,780.80

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Solution

The fourth proportional to 780,217.92, 1,170,367.20 and 247,780.80 is: 371,684.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,217.92 : 1,170,367.20 = 247,780.80 : x
  2. Step 2: Convert to fraction form
    780,217.92/1,170,367.20 = 247,780.80/x
  3. Step 3: Cross multiply
    780,217.92x = 1,170,367.20 × 247,780.80
  4. Step 4: Simplify right side
    780,217.92x = 289,994,521,109.76
  5. Step 5: Solve for x
    x = 289,994,521,109.76/780,217.92
  6. Step 6: Final answer
    x = 371,684.00

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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.