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Finding the Fourth Proportional to 611,028.80, 916,175.01 and 274,008.50

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Solution

The fourth proportional to 611,028.80, 916,175.01 and 274,008.50 is: 410,847.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,028.80 : 916,175.01 = 274,008.50 : x
  2. Step 2: Convert to fraction form
    611,028.80/916,175.01 = 274,008.50/x
  3. Step 3: Cross multiply
    611,028.80x = 916,175.01 × 274,008.50
  4. Step 4: Simplify right side
    611,028.80x = 251,039,740,227.59
  5. Step 5: Solve for x
    x = 251,039,740,227.59/611,028.80
  6. Step 6: Final answer
    x = 410,847.64

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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.