Home / 1,487,942.76-2,231,578.80-422,961.24

Finding the Fourth Proportional to 1,487,942.76, 2,231,578.80 and 422,961.24

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Solution

The fourth proportional to 1,487,942.76, 2,231,578.80 and 422,961.24 is: 634,346.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,942.76 : 2,231,578.80 = 422,961.24 : x
  2. Step 2: Convert to fraction form
    1,487,942.76/2,231,578.80 = 422,961.24/x
  3. Step 3: Cross multiply
    1,487,942.76x = 2,231,578.80 × 422,961.24
  4. Step 4: Simplify right side
    1,487,942.76x = 943,871,336,405.71
  5. Step 5: Solve for x
    x = 943,871,336,405.71/1,487,942.76
  6. Step 6: Final answer
    x = 634,346.54

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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.