Home / 489,930.13-676,086.24-275,079.25

Finding the Fourth Proportional to 489,930.13, 676,086.24 and 275,079.25

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Solution

The fourth proportional to 489,930.13, 676,086.24 and 275,079.25 is: 379,599.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,930.13 : 676,086.24 = 275,079.25 : x
  2. Step 2: Convert to fraction form
    489,930.13/676,086.24 = 275,079.25/x
  3. Step 3: Cross multiply
    489,930.13x = 676,086.24 × 275,079.25
  4. Step 4: Simplify right side
    489,930.13x = 185,977,295,834.52
  5. Step 5: Solve for x
    x = 185,977,295,834.52/489,930.13
  6. Step 6: Final answer
    x = 379,599.63

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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.