Home / 812,538.44-1,121,117.46-522,301.64

Finding the Fourth Proportional to 812,538.44, 1,121,117.46 and 522,301.64

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Solution

The fourth proportional to 812,538.44, 1,121,117.46 and 522,301.64 is: 720,656.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,538.44 : 1,121,117.46 = 522,301.64 : x
  2. Step 2: Convert to fraction form
    812,538.44/1,121,117.46 = 522,301.64/x
  3. Step 3: Cross multiply
    812,538.44x = 1,121,117.46 × 522,301.64
  4. Step 4: Simplify right side
    812,538.44x = 585,561,487,990.63
  5. Step 5: Solve for x
    x = 585,561,487,990.63/812,538.44
  6. Step 6: Final answer
    x = 720,656.97

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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.