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Finding the Fourth Proportional to 551,796.20, 761,422.02 and 310,040.36

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Solution

The fourth proportional to 551,796.20, 761,422.02 and 310,040.36 is: 427,823.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,796.20 : 761,422.02 = 310,040.36 : x
  2. Step 2: Convert to fraction form
    551,796.20/761,422.02 = 310,040.36/x
  3. Step 3: Cross multiply
    551,796.20x = 761,422.02 × 310,040.36
  4. Step 4: Simplify right side
    551,796.20x = 236,071,557,192.73
  5. Step 5: Solve for x
    x = 236,071,557,192.73/551,796.20
  6. Step 6: Final answer
    x = 427,823.82

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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.