Home / 744,728.91-1,027,695.20-405,198.51

Finding the Fourth Proportional to 744,728.91, 1,027,695.20 and 405,198.51

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Solution

The fourth proportional to 744,728.91, 1,027,695.20 and 405,198.51 is: 559,157.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    744,728.91 : 1,027,695.20 = 405,198.51 : x
  2. Step 2: Convert to fraction form
    744,728.91/1,027,695.20 = 405,198.51/x
  3. Step 3: Cross multiply
    744,728.91x = 1,027,695.20 × 405,198.51
  4. Step 4: Simplify right side
    744,728.91x = 416,420,561,748.16
  5. Step 5: Solve for x
    x = 416,420,561,748.16/744,728.91
  6. Step 6: Final answer
    x = 559,157.24

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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.