Home / 1,121,891.28-1,548,211.92-612,582.80

Finding the Fourth Proportional to 1,121,891.28, 1,548,211.92 and 612,582.80

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Solution

The fourth proportional to 1,121,891.28, 1,548,211.92 and 612,582.80 is: 845,365.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,891.28 : 1,548,211.92 = 612,582.80 : x
  2. Step 2: Convert to fraction form
    1,121,891.28/1,548,211.92 = 612,582.80/x
  3. Step 3: Cross multiply
    1,121,891.28x = 1,548,211.92 × 612,582.80
  4. Step 4: Simplify right side
    1,121,891.28x = 948,407,992,946.98
  5. Step 5: Solve for x
    x = 948,407,992,946.98/1,121,891.28
  6. Step 6: Final answer
    x = 845,365.33

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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.