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Finding the Fourth Proportional to 680,285.81, 938,770.88 and 374,333.59

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Solution

The fourth proportional to 680,285.81, 938,770.88 and 374,333.59 is: 516,567.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    680,285.81 : 938,770.88 = 374,333.59 : x
  2. Step 2: Convert to fraction form
    680,285.81/938,770.88 = 374,333.59/x
  3. Step 3: Cross multiply
    680,285.81x = 938,770.88 × 374,333.59
  4. Step 4: Simplify right side
    680,285.81x = 351,413,469,824.70
  5. Step 5: Solve for x
    x = 351,413,469,824.70/680,285.81
  6. Step 6: Final answer
    x = 516,567.40

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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.