Home / 855,945.82-1,283,915.67-256,904.38

Finding the Fourth Proportional to 855,945.82, 1,283,915.67 and 256,904.38

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Solution

The fourth proportional to 855,945.82, 1,283,915.67 and 256,904.38 is: 385,355.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,945.82 : 1,283,915.67 = 256,904.38 : x
  2. Step 2: Convert to fraction form
    855,945.82/1,283,915.67 = 256,904.38/x
  3. Step 3: Cross multiply
    855,945.82x = 1,283,915.67 × 256,904.38
  4. Step 4: Simplify right side
    855,945.82x = 329,843,559,173.64
  5. Step 5: Solve for x
    x = 329,843,559,173.64/855,945.82
  6. Step 6: Final answer
    x = 385,355.65

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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.