Home / 867,902.19-1,300,934.73-394,919.70

Finding the Fourth Proportional to 867,902.19, 1,300,934.73 and 394,919.70

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Solution

The fourth proportional to 867,902.19, 1,300,934.73 and 394,919.70 is: 591,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,902.19 : 1,300,934.73 = 394,919.70 : x
  2. Step 2: Convert to fraction form
    867,902.19/1,300,934.73 = 394,919.70/x
  3. Step 3: Cross multiply
    867,902.19x = 1,300,934.73 × 394,919.70
  4. Step 4: Simplify right side
    867,902.19x = 513,764,753,291.18
  5. Step 5: Solve for x
    x = 513,764,753,291.18/867,902.19
  6. Step 6: Final answer
    x = 591,961.58

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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.