Home / 429,736.27-644,884.28-163,499.09

Finding the Fourth Proportional to 429,736.27, 644,884.28 and 163,499.09

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Solution

The fourth proportional to 429,736.27, 644,884.28 and 163,499.09 is: 245,355.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,736.27 : 644,884.28 = 163,499.09 : x
  2. Step 2: Convert to fraction form
    429,736.27/644,884.28 = 163,499.09/x
  3. Step 3: Cross multiply
    429,736.27x = 644,884.28 × 163,499.09
  4. Step 4: Simplify right side
    429,736.27x = 105,437,995,739.63
  5. Step 5: Solve for x
    x = 105,437,995,739.63/429,736.27
  6. Step 6: Final answer
    x = 245,355.12

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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.