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Finding the Fourth Proportional to 518,958.12, 716,231.52 and 304,183.92

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Solution

The fourth proportional to 518,958.12, 716,231.52 and 304,183.92 is: 419,814.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,958.12 : 716,231.52 = 304,183.92 : x
  2. Step 2: Convert to fraction form
    518,958.12/716,231.52 = 304,183.92/x
  3. Step 3: Cross multiply
    518,958.12x = 716,231.52 × 304,183.92
  4. Step 4: Simplify right side
    518,958.12x = 217,866,111,381.16
  5. Step 5: Solve for x
    x = 217,866,111,381.16/518,958.12
  6. Step 6: Final answer
    x = 419,814.44

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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.