Home / 1,939,144.20-2,910,044.90-676,971.78

Finding the Fourth Proportional to 1,939,144.20, 2,910,044.90 and 676,971.78

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Solution

The fourth proportional to 1,939,144.20, 2,910,044.90 and 676,971.78 is: 1,015,921.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,939,144.20 : 2,910,044.90 = 676,971.78 : x
  2. Step 2: Convert to fraction form
    1,939,144.20/2,910,044.90 = 676,971.78/x
  3. Step 3: Cross multiply
    1,939,144.20x = 2,910,044.90 × 676,971.78
  4. Step 4: Simplify right side
    1,939,144.20x = 1,970,018,272,448.06
  5. Step 5: Solve for x
    x = 1,970,018,272,448.06/1,939,144.20
  6. Step 6: Final answer
    x = 1,015,921.49

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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.