Home / 781,270.48-1,171,964.04-331,940.80

Finding the Fourth Proportional to 781,270.48, 1,171,964.04 and 331,940.80

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Solution

The fourth proportional to 781,270.48, 1,171,964.04 and 331,940.80 is: 497,935.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,270.48 : 1,171,964.04 = 331,940.80 : x
  2. Step 2: Convert to fraction form
    781,270.48/1,171,964.04 = 331,940.80/x
  3. Step 3: Cross multiply
    781,270.48x = 1,171,964.04 × 331,940.80
  4. Step 4: Simplify right side
    781,270.48x = 389,022,681,008.83
  5. Step 5: Solve for x
    x = 389,022,681,008.83/781,270.48
  6. Step 6: Final answer
    x = 497,935.98

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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.