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Finding the Fourth Proportional to 480,878.36, 721,383.18 and 200,330.04

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Solution

The fourth proportional to 480,878.36, 721,383.18 and 200,330.04 is: 300,522.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,878.36 : 721,383.18 = 200,330.04 : x
  2. Step 2: Convert to fraction form
    480,878.36/721,383.18 = 200,330.04/x
  3. Step 3: Cross multiply
    480,878.36x = 721,383.18 × 200,330.04
  4. Step 4: Simplify right side
    480,878.36x = 144,514,721,304.73
  5. Step 5: Solve for x
    x = 144,514,721,304.73/480,878.36
  6. Step 6: Final answer
    x = 300,522.41

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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.