Home / 694,474.40-1,040,156.40-414,538.40

Finding the Fourth Proportional to 694,474.40, 1,040,156.40 and 414,538.40

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Solution

The fourth proportional to 694,474.40, 1,040,156.40 and 414,538.40 is: 620,879.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    694,474.40 : 1,040,156.40 = 414,538.40 : x
  2. Step 2: Convert to fraction form
    694,474.40/1,040,156.40 = 414,538.40/x
  3. Step 3: Cross multiply
    694,474.40x = 1,040,156.40 × 414,538.40
  4. Step 4: Simplify right side
    694,474.40x = 431,184,769,805.76
  5. Step 5: Solve for x
    x = 431,184,769,805.76/694,474.40
  6. Step 6: Final answer
    x = 620,879.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.