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Finding the Fourth Proportional to 707,759.75, 976,719.59 and 385,469.59

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Solution

The fourth proportional to 707,759.75, 976,719.59 and 385,469.59 is: 531,954.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,759.75 : 976,719.59 = 385,469.59 : x
  2. Step 2: Convert to fraction form
    707,759.75/976,719.59 = 385,469.59/x
  3. Step 3: Cross multiply
    707,759.75x = 976,719.59 × 385,469.59
  4. Step 4: Simplify right side
    707,759.75x = 376,495,699,902.27
  5. Step 5: Solve for x
    x = 376,495,699,902.27/707,759.75
  6. Step 6: Final answer
    x = 531,954.10

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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.