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Finding the Fourth Proportional to 450,666.52, 621,257.22 and 343,049.08

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Solution

The fourth proportional to 450,666.52, 621,257.22 and 343,049.08 is: 472,903.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,666.52 : 621,257.22 = 343,049.08 : x
  2. Step 2: Convert to fraction form
    450,666.52/621,257.22 = 343,049.08/x
  3. Step 3: Cross multiply
    450,666.52x = 621,257.22 × 343,049.08
  4. Step 4: Simplify right side
    450,666.52x = 213,121,717,764.36
  5. Step 5: Solve for x
    x = 213,121,717,764.36/450,666.52
  6. Step 6: Final answer
    x = 472,903.37

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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.