Home / 498,619.22-746,736.78-287,617.46

Finding the Fourth Proportional to 498,619.22, 746,736.78 and 287,617.46

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Solution

The fourth proportional to 498,619.22, 746,736.78 and 287,617.46 is: 430,738.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,619.22 : 746,736.78 = 287,617.46 : x
  2. Step 2: Convert to fraction form
    498,619.22/746,736.78 = 287,617.46/x
  3. Step 3: Cross multiply
    498,619.22x = 746,736.78 × 287,617.46
  4. Step 4: Simplify right side
    498,619.22x = 214,774,535,952.18
  5. Step 5: Solve for x
    x = 214,774,535,952.18/498,619.22
  6. Step 6: Final answer
    x = 430,738.58

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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.