Home / 855,972.82-1,283,956.14-256,931.38

Finding the Fourth Proportional to 855,972.82, 1,283,956.14 and 256,931.38

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Solution

The fourth proportional to 855,972.82, 1,283,956.14 and 256,931.38 is: 385,396.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,972.82 : 1,283,956.14 = 256,931.38 : x
  2. Step 2: Convert to fraction form
    855,972.82/1,283,956.14 = 256,931.38/x
  3. Step 3: Cross multiply
    855,972.82x = 1,283,956.14 × 256,931.38
  4. Step 4: Simplify right side
    855,972.82x = 329,888,622,909.67
  5. Step 5: Solve for x
    x = 329,888,622,909.67/855,972.82
  6. Step 6: Final answer
    x = 385,396.14

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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.