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Finding the Fourth Proportional to 498,247, 687,595.44 and 271,907.08

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Solution

The fourth proportional to 498,247, 687,595.44 and 271,907.08 is: 375,239.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,247 : 687,595.44 = 271,907.08 : x
  2. Step 2: Convert to fraction form
    498,247/687,595.44 = 271,907.08/x
  3. Step 3: Cross multiply
    498,247x = 687,595.44 × 271,907.08
  4. Step 4: Simplify right side
    498,247x = 186,962,068,311.72
  5. Step 5: Solve for x
    x = 186,962,068,311.72/498,247
  6. Step 6: Final answer
    x = 375,239.73

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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.