Home / 1,005,139.20-1,507,858.16-331,096

Finding the Fourth Proportional to 1,005,139.20, 1,507,858.16 and 331,096

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Solution

The fourth proportional to 1,005,139.20, 1,507,858.16 and 331,096 is: 496,693.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,139.20 : 1,507,858.16 = 331,096 : x
  2. Step 2: Convert to fraction form
    1,005,139.20/1,507,858.16 = 331,096/x
  3. Step 3: Cross multiply
    1,005,139.20x = 1,507,858.16 × 331,096
  4. Step 4: Simplify right side
    1,005,139.20x = 499,245,805,343.36
  5. Step 5: Solve for x
    x = 499,245,805,343.36/1,005,139.20
  6. Step 6: Final answer
    x = 496,693.20

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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.