Home / 1,398,204.32-2,087,099-1,199,799.68

Finding the Fourth Proportional to 1,398,204.32, 2,087,099 and 1,199,799.68

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Solution

The fourth proportional to 1,398,204.32, 2,087,099 and 1,199,799.68 is: 1,790,940.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,204.32 : 2,087,099 = 1,199,799.68 : x
  2. Step 2: Convert to fraction form
    1,398,204.32/2,087,099 = 1,199,799.68/x
  3. Step 3: Cross multiply
    1,398,204.32x = 2,087,099 × 1,199,799.68
  4. Step 4: Simplify right side
    1,398,204.32x = 2,504,100,712,328.32
  5. Step 5: Solve for x
    x = 2,504,100,712,328.32/1,398,204.32
  6. Step 6: Final answer
    x = 1,790,940.48

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.