Home / 728,921.36-1,093,428.12-308,141.84

Finding the Fourth Proportional to 728,921.36, 1,093,428.12 and 308,141.84

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Solution

The fourth proportional to 728,921.36, 1,093,428.12 and 308,141.84 is: 462,232.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,921.36 : 1,093,428.12 = 308,141.84 : x
  2. Step 2: Convert to fraction form
    728,921.36/1,093,428.12 = 308,141.84/x
  3. Step 3: Cross multiply
    728,921.36x = 1,093,428.12 × 308,141.84
  4. Step 4: Simplify right side
    728,921.36x = 336,930,952,804.54
  5. Step 5: Solve for x
    x = 336,930,952,804.54/728,921.36
  6. Step 6: Final answer
    x = 462,232.24

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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.