Home / 1,286,906.57-1,929,167.91-476,839.63

Finding the Fourth Proportional to 1,286,906.57, 1,929,167.91 and 476,839.63

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Solution

The fourth proportional to 1,286,906.57, 1,929,167.91 and 476,839.63 is: 714,817.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,906.57 : 1,929,167.91 = 476,839.63 : x
  2. Step 2: Convert to fraction form
    1,286,906.57/1,929,167.91 = 476,839.63/x
  3. Step 3: Cross multiply
    1,286,906.57x = 1,929,167.91 × 476,839.63
  4. Step 4: Simplify right side
    1,286,906.57x = 919,903,707,589.35
  5. Step 5: Solve for x
    x = 919,903,707,589.35/1,286,906.57
  6. Step 6: Final answer
    x = 714,817.79

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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.