Home / 854,058.60-1,281,486.42-380,694.60

Finding the Fourth Proportional to 854,058.60, 1,281,486.42 and 380,694.60

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Solution

The fourth proportional to 854,058.60, 1,281,486.42 and 380,694.60 is: 571,219.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    854,058.60 : 1,281,486.42 = 380,694.60 : x
  2. Step 2: Convert to fraction form
    854,058.60/1,281,486.42 = 380,694.60/x
  3. Step 3: Cross multiply
    854,058.60x = 1,281,486.42 × 380,694.60
  4. Step 4: Simplify right side
    854,058.60x = 487,854,960,067.33
  5. Step 5: Solve for x
    x = 487,854,960,067.33/854,058.60
  6. Step 6: Final answer
    x = 571,219.54

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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.