Home / 1,053,279.60-1,579,919.40-628,126.80

Finding the Fourth Proportional to 1,053,279.60, 1,579,919.40 and 628,126.80

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Solution

The fourth proportional to 1,053,279.60, 1,579,919.40 and 628,126.80 is: 942,190.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,053,279.60 : 1,579,919.40 = 628,126.80 : x
  2. Step 2: Convert to fraction form
    1,053,279.60/1,579,919.40 = 628,126.80/x
  3. Step 3: Cross multiply
    1,053,279.60x = 1,579,919.40 × 628,126.80
  4. Step 4: Simplify right side
    1,053,279.60x = 992,389,716,979.92
  5. Step 5: Solve for x
    x = 992,389,716,979.92/1,053,279.60
  6. Step 6: Final answer
    x = 942,190.20

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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.