Home / 690,825.82-1,036,378.41-291,467.56

Finding the Fourth Proportional to 690,825.82, 1,036,378.41 and 291,467.56

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Solution

The fourth proportional to 690,825.82, 1,036,378.41 and 291,467.56 is: 437,260.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,825.82 : 1,036,378.41 = 291,467.56 : x
  2. Step 2: Convert to fraction form
    690,825.82/1,036,378.41 = 291,467.56/x
  3. Step 3: Cross multiply
    690,825.82x = 1,036,378.41 × 291,467.56
  4. Step 4: Simplify right side
    690,825.82x = 302,070,686,399.38
  5. Step 5: Solve for x
    x = 302,070,686,399.38/690,825.82
  6. Step 6: Final answer
    x = 437,260.27

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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.