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Finding the Fourth Proportional to 657,056.67, 985,706.67 and 207,890.61

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Solution

The fourth proportional to 657,056.67, 985,706.67 and 207,890.61 is: 311,874.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,056.67 : 985,706.67 = 207,890.61 : x
  2. Step 2: Convert to fraction form
    657,056.67/985,706.67 = 207,890.61/x
  3. Step 3: Cross multiply
    657,056.67x = 985,706.67 × 207,890.61
  4. Step 4: Simplify right side
    657,056.67x = 204,919,160,907.37
  5. Step 5: Solve for x
    x = 204,919,160,907.37/657,056.67
  6. Step 6: Final answer
    x = 311,874.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.