Home / 519,026.60-777,618.30-321,804.20

Finding the Fourth Proportional to 519,026.60, 777,618.30 and 321,804.20

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Solution

The fourth proportional to 519,026.60, 777,618.30 and 321,804.20 is: 482,134.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,026.60 : 777,618.30 = 321,804.20 : x
  2. Step 2: Convert to fraction form
    519,026.60/777,618.30 = 321,804.20/x
  3. Step 3: Cross multiply
    519,026.60x = 777,618.30 × 321,804.20
  4. Step 4: Simplify right side
    519,026.60x = 250,240,834,936.86
  5. Step 5: Solve for x
    x = 250,240,834,936.86/519,026.60
  6. Step 6: Final answer
    x = 482,134.89

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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.