Home / 1,388,610.20-2,082,915.30-490,044.80

Finding the Fourth Proportional to 1,388,610.20, 2,082,915.30 and 490,044.80

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Solution

The fourth proportional to 1,388,610.20, 2,082,915.30 and 490,044.80 is: 735,067.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,388,610.20 : 2,082,915.30 = 490,044.80 : x
  2. Step 2: Convert to fraction form
    1,388,610.20/2,082,915.30 = 490,044.80/x
  3. Step 3: Cross multiply
    1,388,610.20x = 2,082,915.30 × 490,044.80
  4. Step 4: Simplify right side
    1,388,610.20x = 1,020,721,811,605.44
  5. Step 5: Solve for x
    x = 1,020,721,811,605.44/1,388,610.20
  6. Step 6: Final answer
    x = 735,067.20

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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.