Home / 2,791,212.80-4,186,819.20-689,964.80

Finding the Fourth Proportional to 2,791,212.80, 4,186,819.20 and 689,964.80

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Solution

The fourth proportional to 2,791,212.80, 4,186,819.20 and 689,964.80 is: 1,034,947.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,791,212.80 : 4,186,819.20 = 689,964.80 : x
  2. Step 2: Convert to fraction form
    2,791,212.80/4,186,819.20 = 689,964.80/x
  3. Step 3: Cross multiply
    2,791,212.80x = 4,186,819.20 × 689,964.80
  4. Step 4: Simplify right side
    2,791,212.80x = 2,888,757,871,964.16
  5. Step 5: Solve for x
    x = 2,888,757,871,964.16/2,791,212.80
  6. Step 6: Final answer
    x = 1,034,947.20

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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.