Home / 1,321,424.40-1,982,136.60-480,003.60

Finding the Fourth Proportional to 1,321,424.40, 1,982,136.60 and 480,003.60

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Solution

The fourth proportional to 1,321,424.40, 1,982,136.60 and 480,003.60 is: 720,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,424.40 : 1,982,136.60 = 480,003.60 : x
  2. Step 2: Convert to fraction form
    1,321,424.40/1,982,136.60 = 480,003.60/x
  3. Step 3: Cross multiply
    1,321,424.40x = 1,982,136.60 × 480,003.60
  4. Step 4: Simplify right side
    1,321,424.40x = 951,432,703,691.76
  5. Step 5: Solve for x
    x = 951,432,703,691.76/1,321,424.40
  6. Step 6: Final answer
    x = 720,005.40

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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.