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Finding the Fourth Proportional to 555,376.68, 766,404.41 and 329,022.18

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Solution

The fourth proportional to 555,376.68, 766,404.41 and 329,022.18 is: 454,041.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,376.68 : 766,404.41 = 329,022.18 : x
  2. Step 2: Convert to fraction form
    555,376.68/766,404.41 = 329,022.18/x
  3. Step 3: Cross multiply
    555,376.68x = 766,404.41 × 329,022.18
  4. Step 4: Simplify right side
    555,376.68x = 252,164,049,739.81
  5. Step 5: Solve for x
    x = 252,164,049,739.81/555,376.68
  6. Step 6: Final answer
    x = 454,041.48

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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.