Home / 920,649.24-1,381,299.48-321,775.74

Finding the Fourth Proportional to 920,649.24, 1,381,299.48 and 321,775.74

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Solution

The fourth proportional to 920,649.24, 1,381,299.48 and 321,775.74 is: 482,777.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,649.24 : 1,381,299.48 = 321,775.74 : x
  2. Step 2: Convert to fraction form
    920,649.24/1,381,299.48 = 321,775.74/x
  3. Step 3: Cross multiply
    920,649.24x = 1,381,299.48 × 321,775.74
  4. Step 4: Simplify right side
    920,649.24x = 444,468,662,338.62
  5. Step 5: Solve for x
    x = 444,468,662,338.62/920,649.24
  6. Step 6: Final answer
    x = 482,777.42

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Double scale
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1.5x scale

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.