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Finding the Fourth Proportional to 339,288.60, 508,932.90 and 313,627.80

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Solution

The fourth proportional to 339,288.60, 508,932.90 and 313,627.80 is: 470,441.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,288.60 : 508,932.90 = 313,627.80 : x
  2. Step 2: Convert to fraction form
    339,288.60/508,932.90 = 313,627.80/x
  3. Step 3: Cross multiply
    339,288.60x = 508,932.90 × 313,627.80
  4. Step 4: Simplify right side
    339,288.60x = 159,615,505,774.62
  5. Step 5: Solve for x
    x = 159,615,505,774.62/339,288.60
  6. Step 6: Final answer
    x = 470,441.70

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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.