Home / 2,279,438.80-3,419,465.40-783,989.20

Finding the Fourth Proportional to 2,279,438.80, 3,419,465.40 and 783,989.20

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Solution

The fourth proportional to 2,279,438.80, 3,419,465.40 and 783,989.20 is: 1,176,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,279,438.80 : 3,419,465.40 = 783,989.20 : x
  2. Step 2: Convert to fraction form
    2,279,438.80/3,419,465.40 = 783,989.20/x
  3. Step 3: Cross multiply
    2,279,438.80x = 3,419,465.40 × 783,989.20
  4. Step 4: Simplify right side
    2,279,438.80x = 2,680,823,943,373.68
  5. Step 5: Solve for x
    x = 2,680,823,943,373.68/2,279,438.80
  6. Step 6: Final answer
    x = 1,176,089.46

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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.