Home / 857,289.20-1,285,987.28-226,203.60

Finding the Fourth Proportional to 857,289.20, 1,285,987.28 and 226,203.60

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Solution

The fourth proportional to 857,289.20, 1,285,987.28 and 226,203.60 is: 339,319.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,289.20 : 1,285,987.28 = 226,203.60 : x
  2. Step 2: Convert to fraction form
    857,289.20/1,285,987.28 = 226,203.60/x
  3. Step 3: Cross multiply
    857,289.20x = 1,285,987.28 × 226,203.60
  4. Step 4: Simplify right side
    857,289.20x = 290,894,952,290.21
  5. Step 5: Solve for x
    x = 290,894,952,290.21/857,289.20
  6. Step 6: Final answer
    x = 339,319.51

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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.