Home / 498,028.14-687,278-271,673.64

Finding the Fourth Proportional to 498,028.14, 687,278 and 271,673.64

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Solution

The fourth proportional to 498,028.14, 687,278 and 271,673.64 is: 374,909.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,028.14 : 687,278 = 271,673.64 : x
  2. Step 2: Convert to fraction form
    498,028.14/687,278 = 271,673.64/x
  3. Step 3: Cross multiply
    498,028.14x = 687,278 × 271,673.64
  4. Step 4: Simplify right side
    498,028.14x = 186,715,315,951.92
  5. Step 5: Solve for x
    x = 186,715,315,951.92/498,028.14
  6. Step 6: Final answer
    x = 374,909.17

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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.