Home / 1,107,559.20-1,661,338.80-930,412.20

Finding the Fourth Proportional to 1,107,559.20, 1,661,338.80 and 930,412.20

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Solution

The fourth proportional to 1,107,559.20, 1,661,338.80 and 930,412.20 is: 1,395,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,559.20 : 1,661,338.80 = 930,412.20 : x
  2. Step 2: Convert to fraction form
    1,107,559.20/1,661,338.80 = 930,412.20/x
  3. Step 3: Cross multiply
    1,107,559.20x = 1,661,338.80 × 930,412.20
  4. Step 4: Simplify right side
    1,107,559.20x = 1,545,729,887,853.36
  5. Step 5: Solve for x
    x = 1,545,729,887,853.36/1,107,559.20
  6. Step 6: Final answer
    x = 1,395,618.30

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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.