Home / 1,247,979.22-1,723,261.13-789,901.89

Finding the Fourth Proportional to 1,247,979.22, 1,723,261.13 and 789,901.89

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Solution

The fourth proportional to 1,247,979.22, 1,723,261.13 and 789,901.89 is: 1,090,729.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,979.22 : 1,723,261.13 = 789,901.89 : x
  2. Step 2: Convert to fraction form
    1,247,979.22/1,723,261.13 = 789,901.89/x
  3. Step 3: Cross multiply
    1,247,979.22x = 1,723,261.13 × 789,901.89
  4. Step 4: Simplify right side
    1,247,979.22x = 1,361,207,225,794.27
  5. Step 5: Solve for x
    x = 1,361,207,225,794.27/1,247,979.22
  6. Step 6: Final answer
    x = 1,090,729.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.