Home / 457,023.60-685,729.80-220,244.40

Finding the Fourth Proportional to 457,023.60, 685,729.80 and 220,244.40

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Solution

The fourth proportional to 457,023.60, 685,729.80 and 220,244.40 is: 330,460.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,023.60 : 685,729.80 = 220,244.40 : x
  2. Step 2: Convert to fraction form
    457,023.60/685,729.80 = 220,244.40/x
  3. Step 3: Cross multiply
    457,023.60x = 685,729.80 × 220,244.40
  4. Step 4: Simplify right side
    457,023.60x = 151,028,148,363.12
  5. Step 5: Solve for x
    x = 151,028,148,363.12/457,023.60
  6. Step 6: Final answer
    x = 330,460.28

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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.