Home / 1,080,557.78-1,491,227.13-621,742.07

Finding the Fourth Proportional to 1,080,557.78, 1,491,227.13 and 621,742.07

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Solution

The fourth proportional to 1,080,557.78, 1,491,227.13 and 621,742.07 is: 858,037.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,080,557.78 : 1,491,227.13 = 621,742.07 : x
  2. Step 2: Convert to fraction form
    1,080,557.78/1,491,227.13 = 621,742.07/x
  3. Step 3: Cross multiply
    1,080,557.78x = 1,491,227.13 × 621,742.07
  4. Step 4: Simplify right side
    1,080,557.78x = 927,158,635,190.22
  5. Step 5: Solve for x
    x = 927,158,635,190.22/1,080,557.78
  6. Step 6: Final answer
    x = 858,037.08

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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.