Home / 481,439.20-721,964.40-165,733.60

Finding the Fourth Proportional to 481,439.20, 721,964.40 and 165,733.60

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Solution

The fourth proportional to 481,439.20, 721,964.40 and 165,733.60 is: 248,533.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,439.20 : 721,964.40 = 165,733.60 : x
  2. Step 2: Convert to fraction form
    481,439.20/721,964.40 = 165,733.60/x
  3. Step 3: Cross multiply
    481,439.20x = 721,964.40 × 165,733.60
  4. Step 4: Simplify right side
    481,439.20x = 119,653,759,083.84
  5. Step 5: Solve for x
    x = 119,653,759,083.84/481,439.20
  6. Step 6: Final answer
    x = 248,533.48

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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.