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Finding the Fourth Proportional to 679,665.06, 937,961.37 and 373,753.98

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Solution

The fourth proportional to 679,665.06, 937,961.37 and 373,753.98 is: 515,793.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,665.06 : 937,961.37 = 373,753.98 : x
  2. Step 2: Convert to fraction form
    679,665.06/937,961.37 = 373,753.98/x
  3. Step 3: Cross multiply
    679,665.06x = 937,961.37 × 373,753.98
  4. Step 4: Simplify right side
    679,665.06x = 350,566,795,123.75
  5. Step 5: Solve for x
    x = 350,566,795,123.75/679,665.06
  6. Step 6: Final answer
    x = 515,793.46

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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.