Home / 486,169.04-729,331.32-205,688.72

Finding the Fourth Proportional to 486,169.04, 729,331.32 and 205,688.72

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Solution

The fourth proportional to 486,169.04, 729,331.32 and 205,688.72 is: 308,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,169.04 : 729,331.32 = 205,688.72 : x
  2. Step 2: Convert to fraction form
    486,169.04/729,331.32 = 205,688.72/x
  3. Step 3: Cross multiply
    486,169.04x = 729,331.32 × 205,688.72
  4. Step 4: Simplify right side
    486,169.04x = 150,015,222,020.05
  5. Step 5: Solve for x
    x = 150,015,222,020.05/486,169.04
  6. Step 6: Final answer
    x = 308,565.97

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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.