Home / 755,474.68-1,042,242.69-449,489.89

Finding the Fourth Proportional to 755,474.68, 1,042,242.69 and 449,489.89

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Solution

The fourth proportional to 755,474.68, 1,042,242.69 and 449,489.89 is: 620,110.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,474.68 : 1,042,242.69 = 449,489.89 : x
  2. Step 2: Convert to fraction form
    755,474.68/1,042,242.69 = 449,489.89/x
  3. Step 3: Cross multiply
    755,474.68x = 1,042,242.69 × 449,489.89
  4. Step 4: Simplify right side
    755,474.68x = 468,477,552,081.40
  5. Step 5: Solve for x
    x = 468,477,552,081.40/755,474.68
  6. Step 6: Final answer
    x = 620,110.20

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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.