Home / 1,386,182.20-2,079,435.30-439,648.60

Finding the Fourth Proportional to 1,386,182.20, 2,079,435.30 and 439,648.60

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Solution

The fourth proportional to 1,386,182.20, 2,079,435.30 and 439,648.60 is: 659,524.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,182.20 : 2,079,435.30 = 439,648.60 : x
  2. Step 2: Convert to fraction form
    1,386,182.20/2,079,435.30 = 439,648.60/x
  3. Step 3: Cross multiply
    1,386,182.20x = 2,079,435.30 × 439,648.60
  4. Step 4: Simplify right side
    1,386,182.20x = 914,220,818,435.58
  5. Step 5: Solve for x
    x = 914,220,818,435.58/1,386,182.20
  6. Step 6: Final answer
    x = 659,524.28

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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.