Home / 1,640,025.60-2,458,288.80-628,756.80

Finding the Fourth Proportional to 1,640,025.60, 2,458,288.80 and 628,756.80

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Solution

The fourth proportional to 1,640,025.60, 2,458,288.80 and 628,756.80 is: 942,464.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,025.60 : 2,458,288.80 = 628,756.80 : x
  2. Step 2: Convert to fraction form
    1,640,025.60/2,458,288.80 = 628,756.80/x
  3. Step 3: Cross multiply
    1,640,025.60x = 2,458,288.80 × 628,756.80
  4. Step 4: Simplify right side
    1,640,025.60x = 1,545,665,799,363.84
  5. Step 5: Solve for x
    x = 1,545,665,799,363.84/1,640,025.60
  6. Step 6: Final answer
    x = 942,464.43

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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.