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Finding the Fourth Proportional to 523,361.28, 721,512.96 and 353,326.08

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Solution

The fourth proportional to 523,361.28, 721,512.96 and 353,326.08 is: 487,100.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,361.28 : 721,512.96 = 353,326.08 : x
  2. Step 2: Convert to fraction form
    523,361.28/721,512.96 = 353,326.08/x
  3. Step 3: Cross multiply
    523,361.28x = 721,512.96 × 353,326.08
  4. Step 4: Simplify right side
    523,361.28x = 254,929,345,826.00
  5. Step 5: Solve for x
    x = 254,929,345,826.00/523,361.28
  6. Step 6: Final answer
    x = 487,100.13

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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.