Home / 1,638,618.39-2,457,935.36-501,378.78

Finding the Fourth Proportional to 1,638,618.39, 2,457,935.36 and 501,378.78

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Solution

The fourth proportional to 1,638,618.39, 2,457,935.36 and 501,378.78 is: 752,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,618.39 : 2,457,935.36 = 501,378.78 : x
  2. Step 2: Convert to fraction form
    1,638,618.39/2,457,935.36 = 501,378.78/x
  3. Step 3: Cross multiply
    1,638,618.39x = 2,457,935.36 × 501,378.78
  4. Step 4: Simplify right side
    1,638,618.39x = 1,232,356,629,608.77
  5. Step 5: Solve for x
    x = 1,232,356,629,608.77/1,638,618.39
  6. Step 6: Final answer
    x = 752,070.55

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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.