Home / 1,386,027.20-2,079,040.80-628,231.70

Finding the Fourth Proportional to 1,386,027.20, 2,079,040.80 and 628,231.70

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Solution

The fourth proportional to 1,386,027.20, 2,079,040.80 and 628,231.70 is: 942,347.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,027.20 : 2,079,040.80 = 628,231.70 : x
  2. Step 2: Convert to fraction form
    1,386,027.20/2,079,040.80 = 628,231.70/x
  3. Step 3: Cross multiply
    1,386,027.20x = 2,079,040.80 × 628,231.70
  4. Step 4: Simplify right side
    1,386,027.20x = 1,306,119,336,153.36
  5. Step 5: Solve for x
    x = 1,306,119,336,153.36/1,386,027.20
  6. Step 6: Final answer
    x = 942,347.55

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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.