Home / 419,939.39-629,536.07-163,712.90

Finding the Fourth Proportional to 419,939.39, 629,536.07 and 163,712.90

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Solution

The fourth proportional to 419,939.39, 629,536.07 and 163,712.90 is: 245,423.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,939.39 : 629,536.07 = 163,712.90 : x
  2. Step 2: Convert to fraction form
    419,939.39/629,536.07 = 163,712.90/x
  3. Step 3: Cross multiply
    419,939.39x = 629,536.07 × 163,712.90
  4. Step 4: Simplify right side
    419,939.39x = 103,063,172,935.91
  5. Step 5: Solve for x
    x = 103,063,172,935.91/419,939.39
  6. Step 6: Final answer
    x = 245,423.93

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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.