Home / 429,663.06-644,339.07-205,014.42

Finding the Fourth Proportional to 429,663.06, 644,339.07 and 205,014.42

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Solution

The fourth proportional to 429,663.06, 644,339.07 and 205,014.42 is: 307,447.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,663.06 : 644,339.07 = 205,014.42 : x
  2. Step 2: Convert to fraction form
    429,663.06/644,339.07 = 205,014.42/x
  3. Step 3: Cross multiply
    429,663.06x = 644,339.07 × 205,014.42
  4. Step 4: Simplify right side
    429,663.06x = 132,098,800,719.39
  5. Step 5: Solve for x
    x = 132,098,800,719.39/429,663.06
  6. Step 6: Final answer
    x = 307,447.42

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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.