Home / 859,893.24-1,290,358.26-299,321.40

Finding the Fourth Proportional to 859,893.24, 1,290,358.26 and 299,321.40

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Solution

The fourth proportional to 859,893.24, 1,290,358.26 and 299,321.40 is: 449,162.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,893.24 : 1,290,358.26 = 299,321.40 : x
  2. Step 2: Convert to fraction form
    859,893.24/1,290,358.26 = 299,321.40/x
  3. Step 3: Cross multiply
    859,893.24x = 1,290,358.26 × 299,321.40
  4. Step 4: Simplify right side
    859,893.24x = 386,231,840,884.76
  5. Step 5: Solve for x
    x = 386,231,840,884.76/859,893.24
  6. Step 6: Final answer
    x = 449,162.55

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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.