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Finding the Fourth Proportional to 707,748.52, 976,704.09 and 385,458.37

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Solution

The fourth proportional to 707,748.52, 976,704.09 and 385,458.37 is: 531,938.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,748.52 : 976,704.09 = 385,458.37 : x
  2. Step 2: Convert to fraction form
    707,748.52/976,704.09 = 385,458.37/x
  3. Step 3: Cross multiply
    707,748.52x = 976,704.09 × 385,458.37
  4. Step 4: Simplify right side
    707,748.52x = 376,478,766,503.73
  5. Step 5: Solve for x
    x = 376,478,766,503.73/707,748.52
  6. Step 6: Final answer
    x = 531,938.61

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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.