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Finding the Fourth Proportional to 679,737.88, 938,016.79 and 373,813.31

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Solution

The fourth proportional to 679,737.88, 938,016.79 and 373,813.31 is: 515,850.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,737.88 : 938,016.79 = 373,813.31 : x
  2. Step 2: Convert to fraction form
    679,737.88/938,016.79 = 373,813.31/x
  3. Step 3: Cross multiply
    679,737.88x = 938,016.79 × 373,813.31
  4. Step 4: Simplify right side
    679,737.88x = 350,643,156,415.39
  5. Step 5: Solve for x
    x = 350,643,156,415.39/679,737.88
  6. Step 6: Final answer
    x = 515,850.55

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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.