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Finding the Fourth Proportional to 486,790.93, 671,811.93 and 269,042.12

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Solution

The fourth proportional to 486,790.93, 671,811.93 and 269,042.12 is: 371,300.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,790.93 : 671,811.93 = 269,042.12 : x
  2. Step 2: Convert to fraction form
    486,790.93/671,811.93 = 269,042.12/x
  3. Step 3: Cross multiply
    486,790.93x = 671,811.93 × 269,042.12
  4. Step 4: Simplify right side
    486,790.93x = 180,745,705,048.73
  5. Step 5: Solve for x
    x = 180,745,705,048.73/486,790.93
  6. Step 6: Final answer
    x = 371,300.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.