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Finding the Fourth Proportional to 498,119.63, 687,404.41 and 271,765.13

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Solution

The fourth proportional to 498,119.63, 687,404.41 and 271,765.13 is: 375,035.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,119.63 : 687,404.41 = 271,765.13 : x
  2. Step 2: Convert to fraction form
    498,119.63/687,404.41 = 271,765.13/x
  3. Step 3: Cross multiply
    498,119.63x = 687,404.41 × 271,765.13
  4. Step 4: Simplify right side
    498,119.63x = 186,812,544,729.79
  5. Step 5: Solve for x
    x = 186,812,544,729.79/498,119.63
  6. Step 6: Final answer
    x = 375,035.50

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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.