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Finding the Fourth Proportional to 489,514.39, 675,597.11 and 274,667.15

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Solution

The fourth proportional to 489,514.39, 675,597.11 and 274,667.15 is: 379,078.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,514.39 : 675,597.11 = 274,667.15 : x
  2. Step 2: Convert to fraction form
    489,514.39/675,597.11 = 274,667.15/x
  3. Step 3: Cross multiply
    489,514.39x = 675,597.11 × 274,667.15
  4. Step 4: Simplify right side
    489,514.39x = 185,564,333,067.59
  5. Step 5: Solve for x
    x = 185,564,333,067.59/489,514.39
  6. Step 6: Final answer
    x = 379,078.40

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1.5x scale

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.