Home / 921,481.61-1,382,128.98-247,475.34

Finding the Fourth Proportional to 921,481.61, 1,382,128.98 and 247,475.34

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Solution

The fourth proportional to 921,481.61, 1,382,128.98 and 247,475.34 is: 371,187.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,481.61 : 1,382,128.98 = 247,475.34 : x
  2. Step 2: Convert to fraction form
    921,481.61/1,382,128.98 = 247,475.34/x
  3. Step 3: Cross multiply
    921,481.61x = 1,382,128.98 × 247,475.34
  4. Step 4: Simplify right side
    921,481.61x = 342,042,839,249.35
  5. Step 5: Solve for x
    x = 342,042,839,249.35/921,481.61
  6. Step 6: Final answer
    x = 371,187.92

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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.