Home / 427,780.07-641,448.61-228,046.81

Finding the Fourth Proportional to 427,780.07, 641,448.61 and 228,046.81

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Solution

The fourth proportional to 427,780.07, 641,448.61 and 228,046.81 is: 341,952.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,780.07 : 641,448.61 = 228,046.81 : x
  2. Step 2: Convert to fraction form
    427,780.07/641,448.61 = 228,046.81/x
  3. Step 3: Cross multiply
    427,780.07x = 641,448.61 × 228,046.81
  4. Step 4: Simplify right side
    427,780.07x = 146,280,309,289.43
  5. Step 5: Solve for x
    x = 146,280,309,289.43/427,780.07
  6. Step 6: Final answer
    x = 341,952.14

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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.