Home / 758,889.56-1,047,267.96-419,357.80

Finding the Fourth Proportional to 758,889.56, 1,047,267.96 and 419,357.80

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Solution

The fourth proportional to 758,889.56, 1,047,267.96 and 419,357.80 is: 578,713.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    758,889.56 : 1,047,267.96 = 419,357.80 : x
  2. Step 2: Convert to fraction form
    758,889.56/1,047,267.96 = 419,357.80/x
  3. Step 3: Cross multiply
    758,889.56x = 1,047,267.96 × 419,357.80
  4. Step 4: Simplify right side
    758,889.56x = 439,179,987,716.09
  5. Step 5: Solve for x
    x = 439,179,987,716.09/758,889.56
  6. Step 6: Final answer
    x = 578,713.97

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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.