Home / 874,425.24-1,311,845.40-275,384.88

Finding the Fourth Proportional to 874,425.24, 1,311,845.40 and 275,384.88

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Solution

The fourth proportional to 874,425.24, 1,311,845.40 and 275,384.88 is: 413,142.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,425.24 : 1,311,845.40 = 275,384.88 : x
  2. Step 2: Convert to fraction form
    874,425.24/1,311,845.40 = 275,384.88/x
  3. Step 3: Cross multiply
    874,425.24x = 1,311,845.40 × 275,384.88
  4. Step 4: Simplify right side
    874,425.24x = 361,262,388,057.55
  5. Step 5: Solve for x
    x = 361,262,388,057.55/874,425.24
  6. Step 6: Final answer
    x = 413,142.68

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1.5x scale

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.