Home / 1,377,217.80-2,065,826.70-618,766.20

Finding the Fourth Proportional to 1,377,217.80, 2,065,826.70 and 618,766.20

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Solution

The fourth proportional to 1,377,217.80, 2,065,826.70 and 618,766.20 is: 928,149.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,217.80 : 2,065,826.70 = 618,766.20 : x
  2. Step 2: Convert to fraction form
    1,377,217.80/2,065,826.70 = 618,766.20/x
  3. Step 3: Cross multiply
    1,377,217.80x = 2,065,826.70 × 618,766.20
  4. Step 4: Simplify right side
    1,377,217.80x = 1,278,263,737,017.54
  5. Step 5: Solve for x
    x = 1,278,263,737,017.54/1,377,217.80
  6. Step 6: Final answer
    x = 928,149.30

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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.