Home / 1,458,009.20-2,187,013.80-1,007,778.80

Finding the Fourth Proportional to 1,458,009.20, 2,187,013.80 and 1,007,778.80

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Solution

The fourth proportional to 1,458,009.20, 2,187,013.80 and 1,007,778.80 is: 1,511,668.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,009.20 : 2,187,013.80 = 1,007,778.80 : x
  2. Step 2: Convert to fraction form
    1,458,009.20/2,187,013.80 = 1,007,778.80/x
  3. Step 3: Cross multiply
    1,458,009.20x = 2,187,013.80 × 1,007,778.80
  4. Step 4: Simplify right side
    1,458,009.20x = 2,204,026,142,947.44
  5. Step 5: Solve for x
    x = 2,204,026,142,947.44/1,458,009.20
  6. Step 6: Final answer
    x = 1,511,668.20

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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.