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Finding the Fourth Proportional to 500,860.80, 691,186.59 and 271,424.43

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Solution

The fourth proportional to 500,860.80, 691,186.59 and 271,424.43 is: 374,565.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,860.80 : 691,186.59 = 271,424.43 : x
  2. Step 2: Convert to fraction form
    500,860.80/691,186.59 = 271,424.43/x
  3. Step 3: Cross multiply
    500,860.80x = 691,186.59 × 271,424.43
  4. Step 4: Simplify right side
    500,860.80x = 187,604,926,214.39
  5. Step 5: Solve for x
    x = 187,604,926,214.39/500,860.80
  6. Step 6: Final answer
    x = 374,565.00

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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.