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Finding the Fourth Proportional to 865,793.50, 1,298,709.70 and 297,173.50

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Solution

The fourth proportional to 865,793.50, 1,298,709.70 and 297,173.50 is: 445,766.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,793.50 : 1,298,709.70 = 297,173.50 : x
  2. Step 2: Convert to fraction form
    865,793.50/1,298,709.70 = 297,173.50/x
  3. Step 3: Cross multiply
    865,793.50x = 1,298,709.70 × 297,173.50
  4. Step 4: Simplify right side
    865,793.50x = 385,942,107,032.95
  5. Step 5: Solve for x
    x = 385,942,107,032.95/865,793.50
  6. Step 6: Final answer
    x = 445,766.93

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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.