Home / 498,009.87-687,252.20-271,653.75

Finding the Fourth Proportional to 498,009.87, 687,252.20 and 271,653.75

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Solution

The fourth proportional to 498,009.87, 687,252.20 and 271,653.75 is: 374,881.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,009.87 : 687,252.20 = 271,653.75 : x
  2. Step 2: Convert to fraction form
    498,009.87/687,252.20 = 271,653.75/x
  3. Step 3: Cross multiply
    498,009.87x = 687,252.20 × 271,653.75
  4. Step 4: Simplify right side
    498,009.87x = 186,694,635,967.48
  5. Step 5: Solve for x
    x = 186,694,635,967.48/498,009.87
  6. Step 6: Final answer
    x = 374,881.40

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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.