Home / 457,484.16-685,467.44-323,701.28

Finding the Fourth Proportional to 457,484.16, 685,467.44 and 323,701.28

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Solution

The fourth proportional to 457,484.16, 685,467.44 and 323,701.28 is: 485,015.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    457,484.16 : 685,467.44 = 323,701.28 : x
  2. Step 2: Convert to fraction form
    457,484.16/685,467.44 = 323,701.28/x
  3. Step 3: Cross multiply
    457,484.16x = 685,467.44 × 323,701.28
  4. Step 4: Simplify right side
    457,484.16x = 221,886,687,726.32
  5. Step 5: Solve for x
    x = 221,886,687,726.32/457,484.16
  6. Step 6: Final answer
    x = 485,015.02

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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.