Home / 1,121,778.39-1,548,053.55-612,480.72

Finding the Fourth Proportional to 1,121,778.39, 1,548,053.55 and 612,480.72

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Solution

The fourth proportional to 1,121,778.39, 1,548,053.55 and 612,480.72 is: 845,223.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,778.39 : 1,548,053.55 = 612,480.72 : x
  2. Step 2: Convert to fraction form
    1,121,778.39/1,548,053.55 = 612,480.72/x
  3. Step 3: Cross multiply
    1,121,778.39x = 1,548,053.55 × 612,480.72
  4. Step 4: Simplify right side
    1,121,778.39x = 948,152,952,902.56
  5. Step 5: Solve for x
    x = 948,152,952,902.56/1,121,778.39
  6. Step 6: Final answer
    x = 845,223.05

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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.