Home / 1,188,611.76-1,783,180.12-440,657.76

Finding the Fourth Proportional to 1,188,611.76, 1,783,180.12 and 440,657.76

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Solution

The fourth proportional to 1,188,611.76, 1,783,180.12 and 440,657.76 is: 661,083.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,611.76 : 1,783,180.12 = 440,657.76 : x
  2. Step 2: Convert to fraction form
    1,188,611.76/1,783,180.12 = 440,657.76/x
  3. Step 3: Cross multiply
    1,188,611.76x = 1,783,180.12 × 440,657.76
  4. Step 4: Simplify right side
    1,188,611.76x = 785,772,157,355.73
  5. Step 5: Solve for x
    x = 785,772,157,355.73/1,188,611.76
  6. Step 6: Final answer
    x = 661,083.95

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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.