Home / 457,764.48-685,886.40-323,982.72

Finding the Fourth Proportional to 457,764.48, 685,886.40 and 323,982.72

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Solution

The fourth proportional to 457,764.48, 685,886.40 and 323,982.72 is: 485,435.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,764.48 : 685,886.40 = 323,982.72 : x
  2. Step 2: Convert to fraction form
    457,764.48/685,886.40 = 323,982.72/x
  3. Step 3: Cross multiply
    457,764.48x = 685,886.40 × 323,982.72
  4. Step 4: Simplify right side
    457,764.48x = 222,215,341,483.01
  5. Step 5: Solve for x
    x = 222,215,341,483.01/457,764.48
  6. Step 6: Final answer
    x = 485,435.96

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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.