Home / 1,640,789.20-2,458,534.20-928,699.60

Finding the Fourth Proportional to 1,640,789.20, 2,458,534.20 and 928,699.60

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Solution

The fourth proportional to 1,640,789.20, 2,458,534.20 and 928,699.60 is: 1,391,549.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,789.20 : 2,458,534.20 = 928,699.60 : x
  2. Step 2: Convert to fraction form
    1,640,789.20/2,458,534.20 = 928,699.60/x
  3. Step 3: Cross multiply
    1,640,789.20x = 2,458,534.20 × 928,699.60
  4. Step 4: Simplify right side
    1,640,789.20x = 2,283,239,728,126.32
  5. Step 5: Solve for x
    x = 2,283,239,728,126.32/1,640,789.20
  6. Step 6: Final answer
    x = 1,391,549.71

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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.