Home / 1,386,158.70-2,079,400.05-439,625.10

Finding the Fourth Proportional to 1,386,158.70, 2,079,400.05 and 439,625.10

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Solution

The fourth proportional to 1,386,158.70, 2,079,400.05 and 439,625.10 is: 659,489.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,158.70 : 2,079,400.05 = 439,625.10 : x
  2. Step 2: Convert to fraction form
    1,386,158.70/2,079,400.05 = 439,625.10/x
  3. Step 3: Cross multiply
    1,386,158.70x = 2,079,400.05 × 439,625.10
  4. Step 4: Simplify right side
    1,386,158.70x = 914,156,454,921.26
  5. Step 5: Solve for x
    x = 914,156,454,921.26/1,386,158.70
  6. Step 6: Final answer
    x = 659,489.03

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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.