Home / 791,211-1,186,965.30-317,933.88

Finding the Fourth Proportional to 791,211, 1,186,965.30 and 317,933.88

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Solution

The fourth proportional to 791,211, 1,186,965.30 and 317,933.88 is: 476,960.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,211 : 1,186,965.30 = 317,933.88 : x
  2. Step 2: Convert to fraction form
    791,211/1,186,965.30 = 317,933.88/x
  3. Step 3: Cross multiply
    791,211x = 1,186,965.30 × 317,933.88
  4. Step 4: Simplify right side
    791,211x = 377,376,483,254.36
  5. Step 5: Solve for x
    x = 377,376,483,254.36/791,211
  6. Step 6: Final answer
    x = 476,960.61

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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.