Home / 791,190.72-1,186,935.84-317,913.12

Finding the Fourth Proportional to 791,190.72, 1,186,935.84 and 317,913.12

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Solution

The fourth proportional to 791,190.72, 1,186,935.84 and 317,913.12 is: 476,929.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    791,190.72 : 1,186,935.84 = 317,913.12 : x
  2. Step 2: Convert to fraction form
    791,190.72/1,186,935.84 = 317,913.12/x
  3. Step 3: Cross multiply
    791,190.72x = 1,186,935.84 × 317,913.12
  4. Step 4: Simplify right side
    791,190.72x = 377,342,476,134.22
  5. Step 5: Solve for x
    x = 377,342,476,134.22/791,190.72
  6. Step 6: Final answer
    x = 476,929.86

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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.