Home / 782,913.20-1,174,369.79-191,937.20

Finding the Fourth Proportional to 782,913.20, 1,174,369.79 and 191,937.20

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Solution

The fourth proportional to 782,913.20, 1,174,369.79 and 191,937.20 is: 287,905.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,913.20 : 1,174,369.79 = 191,937.20 : x
  2. Step 2: Convert to fraction form
    782,913.20/1,174,369.79 = 191,937.20/x
  3. Step 3: Cross multiply
    782,913.20x = 1,174,369.79 × 191,937.20
  4. Step 4: Simplify right side
    782,913.20x = 225,405,242,425.65
  5. Step 5: Solve for x
    x = 225,405,242,425.65/782,913.20
  6. Step 6: Final answer
    x = 287,905.79

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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.