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Finding the Fourth Proportional to 410,508.87, 566,893.47 and 388,144.36

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Solution

The fourth proportional to 410,508.87, 566,893.47 and 388,144.36 is: 536,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,508.87 : 566,893.47 = 388,144.36 : x
  2. Step 2: Convert to fraction form
    410,508.87/566,893.47 = 388,144.36/x
  3. Step 3: Cross multiply
    410,508.87x = 566,893.47 × 388,144.36
  4. Step 4: Simplify right side
    410,508.87x = 220,036,503,101.33
  5. Step 5: Solve for x
    x = 220,036,503,101.33/410,508.87
  6. Step 6: Final answer
    x = 536,009.13

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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.