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Finding the Fourth Proportional to 723,665.60, 998,004.84 and 451,758.60

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Solution

The fourth proportional to 723,665.60, 998,004.84 and 451,758.60 is: 623,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,665.60 : 998,004.84 = 451,758.60 : x
  2. Step 2: Convert to fraction form
    723,665.60/998,004.84 = 451,758.60/x
  3. Step 3: Cross multiply
    723,665.60x = 998,004.84 × 451,758.60
  4. Step 4: Simplify right side
    723,665.60x = 450,857,269,311.62
  5. Step 5: Solve for x
    x = 450,857,269,311.62/723,665.60
  6. Step 6: Final answer
    x = 623,018.79

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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.