Home / 636,629.36-878,548.20-350,168.72

Finding the Fourth Proportional to 636,629.36, 878,548.20 and 350,168.72

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Solution

The fourth proportional to 636,629.36, 878,548.20 and 350,168.72 is: 483,232.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,629.36 : 878,548.20 = 350,168.72 : x
  2. Step 2: Convert to fraction form
    636,629.36/878,548.20 = 350,168.72/x
  3. Step 3: Cross multiply
    636,629.36x = 878,548.20 × 350,168.72
  4. Step 4: Simplify right side
    636,629.36x = 307,640,098,652.30
  5. Step 5: Solve for x
    x = 307,640,098,652.30/636,629.36
  6. Step 6: Final answer
    x = 483,232.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.