Home / 498,622.47-746,741.66-287,620.71

Finding the Fourth Proportional to 498,622.47, 746,741.66 and 287,620.71

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Solution

The fourth proportional to 498,622.47, 746,741.66 and 287,620.71 is: 430,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,622.47 : 746,741.66 = 287,620.71 : x
  2. Step 2: Convert to fraction form
    498,622.47/746,741.66 = 287,620.71/x
  3. Step 3: Cross multiply
    498,622.47x = 746,741.66 × 287,620.71
  4. Step 4: Simplify right side
    498,622.47x = 214,778,364,997.68
  5. Step 5: Solve for x
    x = 214,778,364,997.68/498,622.47
  6. Step 6: Final answer
    x = 430,743.45

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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.