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Finding the Fourth Proportional to 408,478.88, 563,470.77 and 245,093.12

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Solution

The fourth proportional to 408,478.88, 563,470.77 and 245,093.12 is: 338,090.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,478.88 : 563,470.77 = 245,093.12 : x
  2. Step 2: Convert to fraction form
    408,478.88/563,470.77 = 245,093.12/x
  3. Step 3: Cross multiply
    408,478.88x = 563,470.77 × 245,093.12
  4. Step 4: Simplify right side
    408,478.88x = 138,102,811,053.74
  5. Step 5: Solve for x
    x = 138,102,811,053.74/408,478.88
  6. Step 6: Final answer
    x = 338,090.45

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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.