Home / 587,868.38-880,306.85-387,581.09

Finding the Fourth Proportional to 587,868.38, 880,306.85 and 387,581.09

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Solution

The fourth proportional to 587,868.38, 880,306.85 and 387,581.09 is: 580,385.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,868.38 : 880,306.85 = 387,581.09 : x
  2. Step 2: Convert to fraction form
    587,868.38/880,306.85 = 387,581.09/x
  3. Step 3: Cross multiply
    587,868.38x = 880,306.85 × 387,581.09
  4. Step 4: Simplify right side
    587,868.38x = 341,190,282,118.03
  5. Step 5: Solve for x
    x = 341,190,282,118.03/587,868.38
  6. Step 6: Final answer
    x = 580,385.50

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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.