Home / 538,631.91-743,311.89-296,918.46

Finding the Fourth Proportional to 538,631.91, 743,311.89 and 296,918.46

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Solution

The fourth proportional to 538,631.91, 743,311.89 and 296,918.46 is: 409,747.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,631.91 : 743,311.89 = 296,918.46 : x
  2. Step 2: Convert to fraction form
    538,631.91/743,311.89 = 296,918.46/x
  3. Step 3: Cross multiply
    538,631.91x = 743,311.89 × 296,918.46
  4. Step 4: Simplify right side
    538,631.91x = 220,703,021,678.49
  5. Step 5: Solve for x
    x = 220,703,021,678.49/538,631.91
  6. Step 6: Final answer
    x = 409,747.39

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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.