Home / 1,487,957.45-2,231,954.39-422,997.80

Finding the Fourth Proportional to 1,487,957.45, 2,231,954.39 and 422,997.80

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Solution

The fourth proportional to 1,487,957.45, 2,231,954.39 and 422,997.80 is: 634,501.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,487,957.45 : 2,231,954.39 = 422,997.80 : x
  2. Step 2: Convert to fraction form
    1,487,957.45/2,231,954.39 = 422,997.80/x
  3. Step 3: Cross multiply
    1,487,957.45x = 2,231,954.39 × 422,997.80
  4. Step 4: Simplify right side
    1,487,957.45x = 944,111,786,568.07
  5. Step 5: Solve for x
    x = 944,111,786,568.07/1,487,957.45
  6. Step 6: Final answer
    x = 634,501.87

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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.