Home / 1,230,005.76-1,845,829.44-431,286.72

Finding the Fourth Proportional to 1,230,005.76, 1,845,829.44 and 431,286.72

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Solution

The fourth proportional to 1,230,005.76, 1,845,829.44 and 431,286.72 is: 647,217.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,005.76 : 1,845,829.44 = 431,286.72 : x
  2. Step 2: Convert to fraction form
    1,230,005.76/1,845,829.44 = 431,286.72/x
  3. Step 3: Cross multiply
    1,230,005.76x = 1,845,829.44 × 431,286.72
  4. Step 4: Simplify right side
    1,230,005.76x = 796,081,724,857.04
  5. Step 5: Solve for x
    x = 796,081,724,857.04/1,230,005.76
  6. Step 6: Final answer
    x = 647,217.88

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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.