Home / 1,579,432.80-2,179,610.10-854,278.78

Finding the Fourth Proportional to 1,579,432.80, 2,179,610.10 and 854,278.78

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Solution

The fourth proportional to 1,579,432.80, 2,179,610.10 and 854,278.78 is: 1,178,900.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,579,432.80 : 2,179,610.10 = 854,278.78 : x
  2. Step 2: Convert to fraction form
    1,579,432.80/2,179,610.10 = 854,278.78/x
  3. Step 3: Cross multiply
    1,579,432.80x = 2,179,610.10 × 854,278.78
  4. Step 4: Simplify right side
    1,579,432.80x = 1,861,994,657,103.68
  5. Step 5: Solve for x
    x = 1,861,994,657,103.68/1,579,432.80
  6. Step 6: Final answer
    x = 1,178,900.84

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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.