Home / 678,429.37-1,017,610.64-252,048.21

Finding the Fourth Proportional to 678,429.37, 1,017,610.64 and 252,048.21

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Solution

The fourth proportional to 678,429.37, 1,017,610.64 and 252,048.21 is: 378,059.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,429.37 : 1,017,610.64 = 252,048.21 : x
  2. Step 2: Convert to fraction form
    678,429.37/1,017,610.64 = 252,048.21/x
  3. Step 3: Cross multiply
    678,429.37x = 1,017,610.64 × 252,048.21
  4. Step 4: Simplify right side
    678,429.37x = 256,486,937,103.04
  5. Step 5: Solve for x
    x = 256,486,937,103.04/678,429.37
  6. Step 6: Final answer
    x = 378,059.90

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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.