Home / 1,248,231.80-1,869,723.30-1,038,279.80

Finding the Fourth Proportional to 1,248,231.80, 1,869,723.30 and 1,038,279.80

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Solution

The fourth proportional to 1,248,231.80, 1,869,723.30 and 1,038,279.80 is: 1,555,236.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,231.80 : 1,869,723.30 = 1,038,279.80 : x
  2. Step 2: Convert to fraction form
    1,248,231.80/1,869,723.30 = 1,038,279.80/x
  3. Step 3: Cross multiply
    1,248,231.80x = 1,869,723.30 × 1,038,279.80
  4. Step 4: Simplify right side
    1,248,231.80x = 1,941,295,933,979.34
  5. Step 5: Solve for x
    x = 1,941,295,933,979.34/1,248,231.80
  6. Step 6: Final answer
    x = 1,555,236.72

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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.