Home / 1,439,792.25-2,160,043.61-428,910.27

Finding the Fourth Proportional to 1,439,792.25, 2,160,043.61 and 428,910.27

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Solution

The fourth proportional to 1,439,792.25, 2,160,043.61 and 428,910.27 is: 643,471.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,439,792.25 : 2,160,043.61 = 428,910.27 : x
  2. Step 2: Convert to fraction form
    1,439,792.25/2,160,043.61 = 428,910.27/x
  3. Step 3: Cross multiply
    1,439,792.25x = 2,160,043.61 × 428,910.27
  4. Step 4: Simplify right side
    1,439,792.25x = 926,464,885,832.32
  5. Step 5: Solve for x
    x = 926,464,885,832.32/1,439,792.25
  6. Step 6: Final answer
    x = 643,471.23

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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.