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Finding the Fourth Proportional to 666,103.06, 999,405.48 and 400,049.06

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Solution

The fourth proportional to 666,103.06, 999,405.48 and 400,049.06 is: 600,224.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,103.06 : 999,405.48 = 400,049.06 : x
  2. Step 2: Convert to fraction form
    666,103.06/999,405.48 = 400,049.06/x
  3. Step 3: Cross multiply
    666,103.06x = 999,405.48 × 400,049.06
  4. Step 4: Simplify right side
    666,103.06x = 399,811,222,832.85
  5. Step 5: Solve for x
    x = 399,811,222,832.85/666,103.06
  6. Step 6: Final answer
    x = 600,224.27

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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.