Home / 940,120.80-1,410,424.20-407,518.80

Finding the Fourth Proportional to 940,120.80, 1,410,424.20 and 407,518.80

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Solution

The fourth proportional to 940,120.80, 1,410,424.20 and 407,518.80 is: 611,383.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    940,120.80 : 1,410,424.20 = 407,518.80 : x
  2. Step 2: Convert to fraction form
    940,120.80/1,410,424.20 = 407,518.80/x
  3. Step 3: Cross multiply
    940,120.80x = 1,410,424.20 × 407,518.80
  4. Step 4: Simplify right side
    940,120.80x = 574,774,377,474.96
  5. Step 5: Solve for x
    x = 574,774,377,474.96/940,120.80
  6. Step 6: Final answer
    x = 611,383.53

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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.