Home / 725,079.60-1,087,619.40-251,812.80

Finding the Fourth Proportional to 725,079.60, 1,087,619.40 and 251,812.80

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Solution

The fourth proportional to 725,079.60, 1,087,619.40 and 251,812.80 is: 377,719.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,079.60 : 1,087,619.40 = 251,812.80 : x
  2. Step 2: Convert to fraction form
    725,079.60/1,087,619.40 = 251,812.80/x
  3. Step 3: Cross multiply
    725,079.60x = 1,087,619.40 × 251,812.80
  4. Step 4: Simplify right side
    725,079.60x = 273,876,486,448.32
  5. Step 5: Solve for x
    x = 273,876,486,448.32/725,079.60
  6. Step 6: Final answer
    x = 377,719.20

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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.