Home / 1,302,015.62-1,796,795.92-721,247.64

Finding the Fourth Proportional to 1,302,015.62, 1,796,795.92 and 721,247.64

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Solution

The fourth proportional to 1,302,015.62, 1,796,795.92 and 721,247.64 is: 995,329.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,302,015.62 : 1,796,795.92 = 721,247.64 : x
  2. Step 2: Convert to fraction form
    1,302,015.62/1,796,795.92 = 721,247.64/x
  3. Step 3: Cross multiply
    1,302,015.62x = 1,796,795.92 × 721,247.64
  4. Step 4: Simplify right side
    1,302,015.62x = 1,295,934,816,861.63
  5. Step 5: Solve for x
    x = 1,295,934,816,861.63/1,302,015.62
  6. Step 6: Final answer
    x = 995,329.70

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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.