Home / 739,879.65-1,109,869.62-260,049.12

Finding the Fourth Proportional to 739,879.65, 1,109,869.62 and 260,049.12

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Solution

The fourth proportional to 739,879.65, 1,109,869.62 and 260,049.12 is: 390,091.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,879.65 : 1,109,869.62 = 260,049.12 : x
  2. Step 2: Convert to fraction form
    739,879.65/1,109,869.62 = 260,049.12/x
  3. Step 3: Cross multiply
    739,879.65x = 1,109,869.62 × 260,049.12
  4. Step 4: Simplify right side
    739,879.65x = 288,620,617,995.73
  5. Step 5: Solve for x
    x = 288,620,617,995.73/739,879.65
  6. Step 6: Final answer
    x = 390,091.30

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1.5x scale

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.