Home / 464,711.14-640,789.08-321,222.07

Finding the Fourth Proportional to 464,711.14, 640,789.08 and 321,222.07

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Solution

The fourth proportional to 464,711.14, 640,789.08 and 321,222.07 is: 442,932.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,711.14 : 640,789.08 = 321,222.07 : x
  2. Step 2: Convert to fraction form
    464,711.14/640,789.08 = 321,222.07/x
  3. Step 3: Cross multiply
    464,711.14x = 640,789.08 × 321,222.07
  4. Step 4: Simplify right side
    464,711.14x = 205,835,594,711.00
  5. Step 5: Solve for x
    x = 205,835,594,711.00/464,711.14
  6. Step 6: Final answer
    x = 442,932.34

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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.