Home / 855,760.01-1,283,842.44-279,380.21

Finding the Fourth Proportional to 855,760.01, 1,283,842.44 and 279,380.21

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Solution

The fourth proportional to 855,760.01, 1,283,842.44 and 279,380.21 is: 419,136.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,760.01 : 1,283,842.44 = 279,380.21 : x
  2. Step 2: Convert to fraction form
    855,760.01/1,283,842.44 = 279,380.21/x
  3. Step 3: Cross multiply
    855,760.01x = 1,283,842.44 × 279,380.21
  4. Step 4: Simplify right side
    855,760.01x = 358,680,164,074.90
  5. Step 5: Solve for x
    x = 358,680,164,074.90/855,760.01
  6. Step 6: Final answer
    x = 419,136.40

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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.