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Finding the Fourth Proportional to 509,679.92, 762,855.90 and 374,708.36

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Solution

The fourth proportional to 509,679.92, 762,855.90 and 374,708.36 is: 560,839.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,679.92 : 762,855.90 = 374,708.36 : x
  2. Step 2: Convert to fraction form
    509,679.92/762,855.90 = 374,708.36/x
  3. Step 3: Cross multiply
    509,679.92x = 762,855.90 × 374,708.36
  4. Step 4: Simplify right side
    509,679.92x = 285,848,483,205.32
  5. Step 5: Solve for x
    x = 285,848,483,205.32/509,679.92
  6. Step 6: Final answer
    x = 560,839.21

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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.