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Finding the Fourth Proportional to 488,265.30, 731,231.55 and 394,953.30

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Solution

The fourth proportional to 488,265.30, 731,231.55 and 394,953.30 is: 591,486.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,265.30 : 731,231.55 = 394,953.30 : x
  2. Step 2: Convert to fraction form
    488,265.30/731,231.55 = 394,953.30/x
  3. Step 3: Cross multiply
    488,265.30x = 731,231.55 × 394,953.30
  4. Step 4: Simplify right side
    488,265.30x = 288,802,313,736.62
  5. Step 5: Solve for x
    x = 288,802,313,736.62/488,265.30
  6. Step 6: Final answer
    x = 591,486.46

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1.5x scale

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.