Home / 1,321,292.80-1,982,457.60-479,929.60

Finding the Fourth Proportional to 1,321,292.80, 1,982,457.60 and 479,929.60

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Solution

The fourth proportional to 1,321,292.80, 1,982,457.60 and 479,929.60 is: 720,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,292.80 : 1,982,457.60 = 479,929.60 : x
  2. Step 2: Convert to fraction form
    1,321,292.80/1,982,457.60 = 479,929.60/x
  3. Step 3: Cross multiply
    1,321,292.80x = 1,982,457.60 × 479,929.60
  4. Step 4: Simplify right side
    1,321,292.80x = 951,440,082,984.96
  5. Step 5: Solve for x
    x = 951,440,082,984.96/1,321,292.80
  6. Step 6: Final answer
    x = 720,082.70

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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.