Home / 498,314.83-687,664.87-271,961.95

Finding the Fourth Proportional to 498,314.83, 687,664.87 and 271,961.95

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Solution

The fourth proportional to 498,314.83, 687,664.87 and 271,961.95 is: 375,302.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,314.83 : 687,664.87 = 271,961.95 : x
  2. Step 2: Convert to fraction form
    498,314.83/687,664.87 = 271,961.95/x
  3. Step 3: Cross multiply
    498,314.83x = 687,664.87 × 271,961.95
  4. Step 4: Simplify right side
    498,314.83x = 187,018,678,991.70
  5. Step 5: Solve for x
    x = 187,018,678,991.70/498,314.83
  6. Step 6: Final answer
    x = 375,302.25

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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.