Home / 1,436,076.79-2,154,115.20-438,796.15

Finding the Fourth Proportional to 1,436,076.79, 2,154,115.20 and 438,796.15

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Solution

The fourth proportional to 1,436,076.79, 2,154,115.20 and 438,796.15 is: 658,194.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,436,076.79 : 2,154,115.20 = 438,796.15 : x
  2. Step 2: Convert to fraction form
    1,436,076.79/2,154,115.20 = 438,796.15/x
  3. Step 3: Cross multiply
    1,436,076.79x = 2,154,115.20 × 438,796.15
  4. Step 4: Simplify right side
    1,436,076.79x = 945,217,445,645.90
  5. Step 5: Solve for x
    x = 945,217,445,645.90/1,436,076.79
  6. Step 6: Final answer
    x = 658,194.22

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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.