Home / 1,279,498.57-1,919,518.49-480,787.02

Finding the Fourth Proportional to 1,279,498.57, 1,919,518.49 and 480,787.02

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Solution

The fourth proportional to 1,279,498.57, 1,919,518.49 and 480,787.02 is: 721,282.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,498.57 : 1,919,518.49 = 480,787.02 : x
  2. Step 2: Convert to fraction form
    1,279,498.57/1,919,518.49 = 480,787.02/x
  3. Step 3: Cross multiply
    1,279,498.57x = 1,919,518.49 × 480,787.02
  4. Step 4: Simplify right side
    1,279,498.57x = 922,879,575,843.97
  5. Step 5: Solve for x
    x = 922,879,575,843.97/1,279,498.57
  6. Step 6: Final answer
    x = 721,282.23

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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.