Home / 800,979.05-1,201,665.41-240,013.55

Finding the Fourth Proportional to 800,979.05, 1,201,665.41 and 240,013.55

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Solution

The fourth proportional to 800,979.05, 1,201,665.41 and 240,013.55 is: 360,079.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    800,979.05 : 1,201,665.41 = 240,013.55 : x
  2. Step 2: Convert to fraction form
    800,979.05/1,201,665.41 = 240,013.55/x
  3. Step 3: Cross multiply
    800,979.05x = 1,201,665.41 × 240,013.55
  4. Step 4: Simplify right side
    800,979.05x = 288,415,976,911.08
  5. Step 5: Solve for x
    x = 288,415,976,911.08/800,979.05
  6. Step 6: Final answer
    x = 360,079.30

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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.