Home / 1,005,122.28-1,507,905.76-331,176.36

Finding the Fourth Proportional to 1,005,122.28, 1,507,905.76 and 331,176.36

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Solution

The fourth proportional to 1,005,122.28, 1,507,905.76 and 331,176.36 is: 496,837.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,122.28 : 1,507,905.76 = 331,176.36 : x
  2. Step 2: Convert to fraction form
    1,005,122.28/1,507,905.76 = 331,176.36/x
  3. Step 3: Cross multiply
    1,005,122.28x = 1,507,905.76 × 331,176.36
  4. Step 4: Simplify right side
    1,005,122.28x = 499,382,740,819.83
  5. Step 5: Solve for x
    x = 499,382,740,819.83/1,005,122.28
  6. Step 6: Final answer
    x = 496,837.80

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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.