Home / 872,679.56-1,204,273.86-490,696.52

Finding the Fourth Proportional to 872,679.56, 1,204,273.86 and 490,696.52

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Solution

The fourth proportional to 872,679.56, 1,204,273.86 and 490,696.52 is: 677,147.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,679.56 : 1,204,273.86 = 490,696.52 : x
  2. Step 2: Convert to fraction form
    872,679.56/1,204,273.86 = 490,696.52/x
  3. Step 3: Cross multiply
    872,679.56x = 1,204,273.86 × 490,696.52
  4. Step 4: Simplify right side
    872,679.56x = 590,932,992,228.97
  5. Step 5: Solve for x
    x = 590,932,992,228.97/872,679.56
  6. Step 6: Final answer
    x = 677,147.74

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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.