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Finding the Fourth Proportional to 505,996.32, 757,419.84 and 318,614.16

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Solution

The fourth proportional to 505,996.32, 757,419.84 and 318,614.16 is: 476,929.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,996.32 : 757,419.84 = 318,614.16 : x
  2. Step 2: Convert to fraction form
    505,996.32/757,419.84 = 318,614.16/x
  3. Step 3: Cross multiply
    505,996.32x = 757,419.84 × 318,614.16
  4. Step 4: Simplify right side
    505,996.32x = 241,324,686,088.93
  5. Step 5: Solve for x
    x = 241,324,686,088.93/505,996.32
  6. Step 6: Final answer
    x = 476,929.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.