Home / 489,929.13-676,084.86-275,078.25

Finding the Fourth Proportional to 489,929.13, 676,084.86 and 275,078.25

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Solution

The fourth proportional to 489,929.13, 676,084.86 and 275,078.25 is: 379,598.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,929.13 : 676,084.86 = 275,078.25 : x
  2. Step 2: Convert to fraction form
    489,929.13/676,084.86 = 275,078.25/x
  3. Step 3: Cross multiply
    489,929.13x = 676,084.86 × 275,078.25
  4. Step 4: Simplify right side
    489,929.13x = 185,976,240,140.30
  5. Step 5: Solve for x
    x = 185,976,240,140.30/489,929.13
  6. Step 6: Final answer
    x = 379,598.25

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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.