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Finding the Fourth Proportional to 410,508.72, 566,893.31 and 388,144.22

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Solution

The fourth proportional to 410,508.72, 566,893.31 and 388,144.22 is: 536,008.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,508.72 : 566,893.31 = 388,144.22 : x
  2. Step 2: Convert to fraction form
    410,508.72/566,893.31 = 388,144.22/x
  3. Step 3: Cross multiply
    410,508.72x = 566,893.31 × 388,144.22
  4. Step 4: Simplify right side
    410,508.72x = 220,036,361,633.17
  5. Step 5: Solve for x
    x = 220,036,361,633.17/410,508.72
  6. Step 6: Final answer
    x = 536,008.98

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.