Home / 1,152,883.77-1,728,168.32-394,206.38

Finding the Fourth Proportional to 1,152,883.77, 1,728,168.32 and 394,206.38

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Solution

The fourth proportional to 1,152,883.77, 1,728,168.32 and 394,206.38 is: 590,913.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,152,883.77 : 1,728,168.32 = 394,206.38 : x
  2. Step 2: Convert to fraction form
    1,152,883.77/1,728,168.32 = 394,206.38/x
  3. Step 3: Cross multiply
    1,152,883.77x = 1,728,168.32 × 394,206.38
  4. Step 4: Simplify right side
    1,152,883.77x = 681,254,976,477.43
  5. Step 5: Solve for x
    x = 681,254,976,477.43/1,152,883.77
  6. Step 6: Final answer
    x = 590,913.84

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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.