Home / 721,056.36-1,081,501.91-188,628.78

Finding the Fourth Proportional to 721,056.36, 1,081,501.91 and 188,628.78

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Solution

The fourth proportional to 721,056.36, 1,081,501.91 and 188,628.78 is: 282,921.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    721,056.36 : 1,081,501.91 = 188,628.78 : x
  2. Step 2: Convert to fraction form
    721,056.36/1,081,501.91 = 188,628.78/x
  3. Step 3: Cross multiply
    721,056.36x = 1,081,501.91 × 188,628.78
  4. Step 4: Simplify right side
    721,056.36x = 204,002,384,907.83
  5. Step 5: Solve for x
    x = 204,002,384,907.83/721,056.36
  6. Step 6: Final answer
    x = 282,921.55

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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.