Home / 827,360.60-1,240,351.95-321,802.79

Finding the Fourth Proportional to 827,360.60, 1,240,351.95 and 321,802.79

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Solution

The fourth proportional to 827,360.60, 1,240,351.95 and 321,802.79 is: 482,436.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,360.60 : 1,240,351.95 = 321,802.79 : x
  2. Step 2: Convert to fraction form
    827,360.60/1,240,351.95 = 321,802.79/x
  3. Step 3: Cross multiply
    827,360.60x = 1,240,351.95 × 321,802.79
  4. Step 4: Simplify right side
    827,360.60x = 399,148,718,091.94
  5. Step 5: Solve for x
    x = 399,148,718,091.94/827,360.60
  6. Step 6: Final answer
    x = 482,436.22

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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.