Home / 811,964.98-1,120,514.07-449,414.02

Finding the Fourth Proportional to 811,964.98, 1,120,514.07 and 449,414.02

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Solution

The fourth proportional to 811,964.98, 1,120,514.07 and 449,414.02 is: 620,192.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,964.98 : 1,120,514.07 = 449,414.02 : x
  2. Step 2: Convert to fraction form
    811,964.98/1,120,514.07 = 449,414.02/x
  3. Step 3: Cross multiply
    811,964.98x = 1,120,514.07 × 449,414.02
  4. Step 4: Simplify right side
    811,964.98x = 503,574,732,665.26
  5. Step 5: Solve for x
    x = 503,574,732,665.26/811,964.98
  6. Step 6: Final answer
    x = 620,192.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.