Home / 1,188,579.78-1,783,132.08-440,625.78

Finding the Fourth Proportional to 1,188,579.78, 1,783,132.08 and 440,625.78

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Solution

The fourth proportional to 1,188,579.78, 1,783,132.08 and 440,625.78 is: 661,035.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,579.78 : 1,783,132.08 = 440,625.78 : x
  2. Step 2: Convert to fraction form
    1,188,579.78/1,783,132.08 = 440,625.78/x
  3. Step 3: Cross multiply
    1,188,579.78x = 1,783,132.08 × 440,625.78
  4. Step 4: Simplify right side
    1,188,579.78x = 785,693,963,593.02
  5. Step 5: Solve for x
    x = 785,693,963,593.02/1,188,579.78
  6. Step 6: Final answer
    x = 661,035.95

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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.