Home / 1,188,703.20-1,780,635.60-738,040.80

Finding the Fourth Proportional to 1,188,703.20, 1,780,635.60 and 738,040.80

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Solution

The fourth proportional to 1,188,703.20, 1,780,635.60 and 738,040.80 is: 1,105,559.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,703.20 : 1,780,635.60 = 738,040.80 : x
  2. Step 2: Convert to fraction form
    1,188,703.20/1,780,635.60 = 738,040.80/x
  3. Step 3: Cross multiply
    1,188,703.20x = 1,780,635.60 × 738,040.80
  4. Step 4: Simplify right side
    1,188,703.20x = 1,314,181,722,732.48
  5. Step 5: Solve for x
    x = 1,314,181,722,732.48/1,188,703.20
  6. Step 6: Final answer
    x = 1,105,559.17

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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.