Home / 814,323.05-1,220,690.33-387,744.26

Finding the Fourth Proportional to 814,323.05, 1,220,690.33 and 387,744.26

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Solution

The fourth proportional to 814,323.05, 1,220,690.33 and 387,744.26 is: 581,238.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,323.05 : 1,220,690.33 = 387,744.26 : x
  2. Step 2: Convert to fraction form
    814,323.05/1,220,690.33 = 387,744.26/x
  3. Step 3: Cross multiply
    814,323.05x = 1,220,690.33 × 387,744.26
  4. Step 4: Simplify right side
    814,323.05x = 473,315,665,086.78
  5. Step 5: Solve for x
    x = 473,315,665,086.78/814,323.05
  6. Step 6: Final answer
    x = 581,238.20

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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.