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Finding the Fourth Proportional to 680,499.41, 939,092.54 and 374,606.42

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Solution

The fourth proportional to 680,499.41, 939,092.54 and 374,606.42 is: 516,958.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,499.41 : 939,092.54 = 374,606.42 : x
  2. Step 2: Convert to fraction form
    680,499.41/939,092.54 = 374,606.42/x
  3. Step 3: Cross multiply
    680,499.41x = 939,092.54 × 374,606.42
  4. Step 4: Simplify right side
    680,499.41x = 351,790,087,889.61
  5. Step 5: Solve for x
    x = 351,790,087,889.61/680,499.41
  6. Step 6: Final answer
    x = 516,958.70

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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.