Home / 870,147.51-1,305,256.73-414,504.56

Finding the Fourth Proportional to 870,147.51, 1,305,256.73 and 414,504.56

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Solution

The fourth proportional to 870,147.51, 1,305,256.73 and 414,504.56 is: 621,773.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,147.51 : 1,305,256.73 = 414,504.56 : x
  2. Step 2: Convert to fraction form
    870,147.51/1,305,256.73 = 414,504.56/x
  3. Step 3: Cross multiply
    870,147.51x = 1,305,256.73 × 414,504.56
  4. Step 4: Simplify right side
    870,147.51x = 541,034,857,956.88
  5. Step 5: Solve for x
    x = 541,034,857,956.88/870,147.51
  6. Step 6: Final answer
    x = 621,773.72

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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.