Home / 669,201.20-1,002,915.72-490,873.20

Finding the Fourth Proportional to 669,201.20, 1,002,915.72 and 490,873.20

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Solution

The fourth proportional to 669,201.20, 1,002,915.72 and 490,873.20 is: 735,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,201.20 : 1,002,915.72 = 490,873.20 : x
  2. Step 2: Convert to fraction form
    669,201.20/1,002,915.72 = 490,873.20/x
  3. Step 3: Cross multiply
    669,201.20x = 1,002,915.72 × 490,873.20
  4. Step 4: Simplify right side
    669,201.20x = 492,304,448,806.70
  5. Step 5: Solve for x
    x = 492,304,448,806.70/669,201.20
  6. Step 6: Final answer
    x = 735,659.84

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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.