Home / 812,006.98-1,120,551.98-449,409.06

Finding the Fourth Proportional to 812,006.98, 1,120,551.98 and 449,409.06

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Solution

The fourth proportional to 812,006.98, 1,120,551.98 and 449,409.06 is: 620,174.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,006.98 : 1,120,551.98 = 449,409.06 : x
  2. Step 2: Convert to fraction form
    812,006.98/1,120,551.98 = 449,409.06/x
  3. Step 3: Cross multiply
    812,006.98x = 1,120,551.98 × 449,409.06
  4. Step 4: Simplify right side
    812,006.98x = 503,586,209,765.89
  5. Step 5: Solve for x
    x = 503,586,209,765.89/812,006.98
  6. Step 6: Final answer
    x = 620,174.73

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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.