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Finding the Fourth Proportional to 629,365.12, 943,843.52 and 208,528

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Solution

The fourth proportional to 629,365.12, 943,843.52 and 208,528 is: 312,724.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,365.12 : 943,843.52 = 208,528 : x
  2. Step 2: Convert to fraction form
    629,365.12/943,843.52 = 208,528/x
  3. Step 3: Cross multiply
    629,365.12x = 943,843.52 × 208,528
  4. Step 4: Simplify right side
    629,365.12x = 196,817,801,538.56
  5. Step 5: Solve for x
    x = 196,817,801,538.56/629,365.12
  6. Step 6: Final answer
    x = 312,724.36

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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.