Home / 351,936.40-527,904.60-331,661.20

Finding the Fourth Proportional to 351,936.40, 527,904.60 and 331,661.20

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Solution

The fourth proportional to 351,936.40, 527,904.60 and 331,661.20 is: 497,491.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,936.40 : 527,904.60 = 331,661.20 : x
  2. Step 2: Convert to fraction form
    351,936.40/527,904.60 = 331,661.20/x
  3. Step 3: Cross multiply
    351,936.40x = 527,904.60 × 331,661.20
  4. Step 4: Simplify right side
    351,936.40x = 175,085,473,121.52
  5. Step 5: Solve for x
    x = 175,085,473,121.52/351,936.40
  6. Step 6: Final answer
    x = 497,491.80

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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.