Home / 855,862.35-1,283,792.31-256,822.53

Finding the Fourth Proportional to 855,862.35, 1,283,792.31 and 256,822.53

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Solution

The fourth proportional to 855,862.35, 1,283,792.31 and 256,822.53 is: 385,233.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,862.35 : 1,283,792.31 = 256,822.53 : x
  2. Step 2: Convert to fraction form
    855,862.35/1,283,792.31 = 256,822.53/x
  3. Step 3: Cross multiply
    855,862.35x = 1,283,792.31 × 256,822.53
  4. Step 4: Simplify right side
    855,862.35x = 329,706,789,048.74
  5. Step 5: Solve for x
    x = 329,706,789,048.74/855,862.35
  6. Step 6: Final answer
    x = 385,233.43

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1.5x scale

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.