Home / 1,360,219.20-2,040,328.80-1,123,828.80

Finding the Fourth Proportional to 1,360,219.20, 2,040,328.80 and 1,123,828.80

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Solution

The fourth proportional to 1,360,219.20, 2,040,328.80 and 1,123,828.80 is: 1,685,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,360,219.20 : 2,040,328.80 = 1,123,828.80 : x
  2. Step 2: Convert to fraction form
    1,360,219.20/2,040,328.80 = 1,123,828.80/x
  3. Step 3: Cross multiply
    1,360,219.20x = 2,040,328.80 × 1,123,828.80
  4. Step 4: Simplify right side
    1,360,219.20x = 2,292,980,266,909.44
  5. Step 5: Solve for x
    x = 2,292,980,266,909.44/1,360,219.20
  6. Step 6: Final answer
    x = 1,685,743.20

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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.