Home / 816,138.42-1,224,414.99-479,463.72

Finding the Fourth Proportional to 816,138.42, 1,224,414.99 and 479,463.72

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Solution

The fourth proportional to 816,138.42, 1,224,414.99 and 479,463.72 is: 719,317.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,138.42 : 1,224,414.99 = 479,463.72 : x
  2. Step 2: Convert to fraction form
    816,138.42/1,224,414.99 = 479,463.72/x
  3. Step 3: Cross multiply
    816,138.42x = 1,224,414.99 × 479,463.72
  4. Step 4: Simplify right side
    816,138.42x = 587,062,565,929.16
  5. Step 5: Solve for x
    x = 587,062,565,929.16/816,138.42
  6. Step 6: Final answer
    x = 719,317.40

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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.