Home / 765,853.12-1,149,488.94-387,040.42

Finding the Fourth Proportional to 765,853.12, 1,149,488.94 and 387,040.42

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Solution

The fourth proportional to 765,853.12, 1,149,488.94 and 387,040.42 is: 580,919.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,853.12 : 1,149,488.94 = 387,040.42 : x
  2. Step 2: Convert to fraction form
    765,853.12/1,149,488.94 = 387,040.42/x
  3. Step 3: Cross multiply
    765,853.12x = 1,149,488.94 × 387,040.42
  4. Step 4: Simplify right side
    765,853.12x = 444,898,682,122.96
  5. Step 5: Solve for x
    x = 444,898,682,122.96/765,853.12
  6. Step 6: Final answer
    x = 580,919.07

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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.