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Finding the Fourth Proportional to 542,415.88, 748,885.26 and 348,910.12

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Solution

The fourth proportional to 542,415.88, 748,885.26 and 348,910.12 is: 481,721.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,415.88 : 748,885.26 = 348,910.12 : x
  2. Step 2: Convert to fraction form
    542,415.88/748,885.26 = 348,910.12/x
  3. Step 3: Cross multiply
    542,415.88x = 748,885.26 × 348,910.12
  4. Step 4: Simplify right side
    542,415.88x = 261,293,645,932.83
  5. Step 5: Solve for x
    x = 261,293,645,932.83/542,415.88
  6. Step 6: Final answer
    x = 481,721.97

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1.5x scale

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.