Home / 781,269.48-1,171,962.54-331,939.80

Finding the Fourth Proportional to 781,269.48, 1,171,962.54 and 331,939.80

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Solution

The fourth proportional to 781,269.48, 1,171,962.54 and 331,939.80 is: 497,934.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,269.48 : 1,171,962.54 = 331,939.80 : x
  2. Step 2: Convert to fraction form
    781,269.48/1,171,962.54 = 331,939.80/x
  3. Step 3: Cross multiply
    781,269.48x = 1,171,962.54 × 331,939.80
  4. Step 4: Simplify right side
    781,269.48x = 389,021,011,135.09
  5. Step 5: Solve for x
    x = 389,021,011,135.09/781,269.48
  6. Step 6: Final answer
    x = 497,934.48

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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.