Home / 788,178.75-1,087,687.94-448,647.03

Finding the Fourth Proportional to 788,178.75, 1,087,687.94 and 448,647.03

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Solution

The fourth proportional to 788,178.75, 1,087,687.94 and 448,647.03 is: 619,133.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,178.75 : 1,087,687.94 = 448,647.03 : x
  2. Step 2: Convert to fraction form
    788,178.75/1,087,687.94 = 448,647.03/x
  3. Step 3: Cross multiply
    788,178.75x = 1,087,687.94 × 448,647.03
  4. Step 4: Simplify right side
    788,178.75x = 487,987,961,604.58
  5. Step 5: Solve for x
    x = 487,987,961,604.58/788,178.75
  6. Step 6: Final answer
    x = 619,133.62

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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.