Home / 1,386,306.33-2,079,657.86-426,843.12

Finding the Fourth Proportional to 1,386,306.33, 2,079,657.86 and 426,843.12

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Solution

The fourth proportional to 1,386,306.33, 2,079,657.86 and 426,843.12 is: 640,325.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,306.33 : 2,079,657.86 = 426,843.12 : x
  2. Step 2: Convert to fraction form
    1,386,306.33/2,079,657.86 = 426,843.12/x
  3. Step 3: Cross multiply
    1,386,306.33x = 2,079,657.86 × 426,843.12
  4. Step 4: Simplify right side
    1,386,306.33x = 887,687,649,494.92
  5. Step 5: Solve for x
    x = 887,687,649,494.92/1,386,306.33
  6. Step 6: Final answer
    x = 640,325.76

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1.5x scale

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.