Home / 715,687.74-1,073,707.38-356,028.30

Finding the Fourth Proportional to 715,687.74, 1,073,707.38 and 356,028.30

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Solution

The fourth proportional to 715,687.74, 1,073,707.38 and 356,028.30 is: 534,129.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,687.74 : 1,073,707.38 = 356,028.30 : x
  2. Step 2: Convert to fraction form
    715,687.74/1,073,707.38 = 356,028.30/x
  3. Step 3: Cross multiply
    715,687.74x = 1,073,707.38 × 356,028.30
  4. Step 4: Simplify right side
    715,687.74x = 382,270,213,198.85
  5. Step 5: Solve for x
    x = 382,270,213,198.85/715,687.74
  6. Step 6: Final answer
    x = 534,129.89

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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.