Home / 326,625.38-489,747.40-126,712.18

Finding the Fourth Proportional to 326,625.38, 489,747.40 and 126,712.18

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Solution

The fourth proportional to 326,625.38, 489,747.40 and 126,712.18 is: 189,994.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,625.38 : 489,747.40 = 126,712.18 : x
  2. Step 2: Convert to fraction form
    326,625.38/489,747.40 = 126,712.18/x
  3. Step 3: Cross multiply
    326,625.38x = 489,747.40 × 126,712.18
  4. Step 4: Simplify right side
    326,625.38x = 62,056,960,703.33
  5. Step 5: Solve for x
    x = 62,056,960,703.33/326,625.38
  6. Step 6: Final answer
    x = 189,994.30

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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.