Home / 1,386,158.20-2,079,399.30-439,624.60

Finding the Fourth Proportional to 1,386,158.20, 2,079,399.30 and 439,624.60

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Solution

The fourth proportional to 1,386,158.20, 2,079,399.30 and 439,624.60 is: 659,488.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,158.20 : 2,079,399.30 = 439,624.60 : x
  2. Step 2: Convert to fraction form
    1,386,158.20/2,079,399.30 = 439,624.60/x
  3. Step 3: Cross multiply
    1,386,158.20x = 2,079,399.30 × 439,624.60
  4. Step 4: Simplify right side
    1,386,158.20x = 914,155,085,502.78
  5. Step 5: Solve for x
    x = 914,155,085,502.78/1,386,158.20
  6. Step 6: Final answer
    x = 659,488.28

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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.