Home / 485,972.32-728,964.96-170,438.44

Finding the Fourth Proportional to 485,972.32, 728,964.96 and 170,438.44

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Solution

The fourth proportional to 485,972.32, 728,964.96 and 170,438.44 is: 255,659.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,972.32 : 728,964.96 = 170,438.44 : x
  2. Step 2: Convert to fraction form
    485,972.32/728,964.96 = 170,438.44/x
  3. Step 3: Cross multiply
    485,972.32x = 728,964.96 × 170,438.44
  4. Step 4: Simplify right side
    485,972.32x = 124,243,650,597.06
  5. Step 5: Solve for x
    x = 124,243,650,597.06/485,972.32
  6. Step 6: Final answer
    x = 255,659.93

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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.