Home / 626,126.78-938,781.84-412,247.36

Finding the Fourth Proportional to 626,126.78, 938,781.84 and 412,247.36

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Solution

The fourth proportional to 626,126.78, 938,781.84 and 412,247.36 is: 618,102.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,126.78 : 938,781.84 = 412,247.36 : x
  2. Step 2: Convert to fraction form
    626,126.78/938,781.84 = 412,247.36/x
  3. Step 3: Cross multiply
    626,126.78x = 938,781.84 × 412,247.36
  4. Step 4: Simplify right side
    626,126.78x = 387,010,335,155.94
  5. Step 5: Solve for x
    x = 387,010,335,155.94/626,126.78
  6. Step 6: Final answer
    x = 618,102.19

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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.