Home / 781,491.24-1,172,141.82-332,392.68

Finding the Fourth Proportional to 781,491.24, 1,172,141.82 and 332,392.68

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Solution

The fourth proportional to 781,491.24, 1,172,141.82 and 332,392.68 is: 498,548.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,491.24 : 1,172,141.82 = 332,392.68 : x
  2. Step 2: Convert to fraction form
    781,491.24/1,172,141.82 = 332,392.68/x
  3. Step 3: Cross multiply
    781,491.24x = 1,172,141.82 × 332,392.68
  4. Step 4: Simplify right side
    781,491.24x = 389,611,360,889.88
  5. Step 5: Solve for x
    x = 389,611,360,889.88/781,491.24
  6. Step 6: Final answer
    x = 498,548.60

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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.