Home / 940,121.80-1,410,425.70-407,519.80

Finding the Fourth Proportional to 940,121.80, 1,410,425.70 and 407,519.80

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Solution

The fourth proportional to 940,121.80, 1,410,425.70 and 407,519.80 is: 611,385.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,121.80 : 1,410,425.70 = 407,519.80 : x
  2. Step 2: Convert to fraction form
    940,121.80/1,410,425.70 = 407,519.80/x
  3. Step 3: Cross multiply
    940,121.80x = 1,410,425.70 × 407,519.80
  4. Step 4: Simplify right side
    940,121.80x = 574,776,399,178.86
  5. Step 5: Solve for x
    x = 574,776,399,178.86/940,121.80
  6. Step 6: Final answer
    x = 611,385.03

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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.