Home / 489,893.19-676,091.66-275,047.35

Finding the Fourth Proportional to 489,893.19, 676,091.66 and 275,047.35

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Solution

The fourth proportional to 489,893.19, 676,091.66 and 275,047.35 is: 379,587.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,893.19 : 676,091.66 = 275,047.35 : x
  2. Step 2: Convert to fraction form
    489,893.19/676,091.66 = 275,047.35/x
  3. Step 3: Cross multiply
    489,893.19x = 676,091.66 × 275,047.35
  4. Step 4: Simplify right side
    489,893.19x = 185,957,218,064.86
  5. Step 5: Solve for x
    x = 185,957,218,064.86/489,893.19
  6. Step 6: Final answer
    x = 379,587.27

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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.