Home / 638,260.56-880,804.92-351,781.38

Finding the Fourth Proportional to 638,260.56, 880,804.92 and 351,781.38

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Solution

The fourth proportional to 638,260.56, 880,804.92 and 351,781.38 is: 485,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,260.56 : 880,804.92 = 351,781.38 : x
  2. Step 2: Convert to fraction form
    638,260.56/880,804.92 = 351,781.38/x
  3. Step 3: Cross multiply
    638,260.56x = 880,804.92 × 351,781.38
  4. Step 4: Simplify right side
    638,260.56x = 309,850,770,268.39
  5. Step 5: Solve for x
    x = 309,850,770,268.39/638,260.56
  6. Step 6: Final answer
    x = 485,461.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.