Home / 855,853.86-1,283,905.96-256,862.37

Finding the Fourth Proportional to 855,853.86, 1,283,905.96 and 256,862.37

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Solution

The fourth proportional to 855,853.86, 1,283,905.96 and 256,862.37 is: 385,331.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,853.86 : 1,283,905.96 = 256,862.37 : x
  2. Step 2: Convert to fraction form
    855,853.86/1,283,905.96 = 256,862.37/x
  3. Step 3: Cross multiply
    855,853.86x = 1,283,905.96 × 256,862.37
  4. Step 4: Simplify right side
    855,853.86x = 329,787,131,915.22
  5. Step 5: Solve for x
    x = 329,787,131,915.22/855,853.86
  6. Step 6: Final answer
    x = 385,331.12

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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.