Home / 1,375,174.24-2,062,762-428,621.28

Finding the Fourth Proportional to 1,375,174.24, 2,062,762 and 428,621.28

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Solution

The fourth proportional to 1,375,174.24, 2,062,762 and 428,621.28 is: 642,932.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,174.24 : 2,062,762 = 428,621.28 : x
  2. Step 2: Convert to fraction form
    1,375,174.24/2,062,762 = 428,621.28/x
  3. Step 3: Cross multiply
    1,375,174.24x = 2,062,762 × 428,621.28
  4. Step 4: Simplify right side
    1,375,174.24x = 884,143,688,775.36
  5. Step 5: Solve for x
    x = 884,143,688,775.36/1,375,174.24
  6. Step 6: Final answer
    x = 642,932.12

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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.