Home / 1,279,278.86-1,921,205.43-1,227,848.63

Finding the Fourth Proportional to 1,279,278.86, 1,921,205.43 and 1,227,848.63

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Solution

The fourth proportional to 1,279,278.86, 1,921,205.43 and 1,227,848.63 is: 1,843,968.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,278.86 : 1,921,205.43 = 1,227,848.63 : x
  2. Step 2: Convert to fraction form
    1,279,278.86/1,921,205.43 = 1,227,848.63/x
  3. Step 3: Cross multiply
    1,279,278.86x = 1,921,205.43 × 1,227,848.63
  4. Step 4: Simplify right side
    1,279,278.86x = 2,358,949,445,568.03
  5. Step 5: Solve for x
    x = 2,358,949,445,568.03/1,279,278.86
  6. Step 6: Final answer
    x = 1,843,968.14

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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.