Home / 753,986.88-1,040,487.12-414,460.80

Finding the Fourth Proportional to 753,986.88, 1,040,487.12 and 414,460.80

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Solution

The fourth proportional to 753,986.88, 1,040,487.12 and 414,460.80 is: 571,947.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,986.88 : 1,040,487.12 = 414,460.80 : x
  2. Step 2: Convert to fraction form
    753,986.88/1,040,487.12 = 414,460.80/x
  3. Step 3: Cross multiply
    753,986.88x = 1,040,487.12 × 414,460.80
  4. Step 4: Simplify right side
    753,986.88x = 431,241,124,144.90
  5. Step 5: Solve for x
    x = 431,241,124,144.90/753,986.88
  6. Step 6: Final answer
    x = 571,947.78

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1.5x scale

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.