Home / 378,816.32-522,963.07-276,727.16

Finding the Fourth Proportional to 378,816.32, 522,963.07 and 276,727.16

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Solution

The fourth proportional to 378,816.32, 522,963.07 and 276,727.16 is: 382,027.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,816.32 : 522,963.07 = 276,727.16 : x
  2. Step 2: Convert to fraction form
    378,816.32/522,963.07 = 276,727.16/x
  3. Step 3: Cross multiply
    378,816.32x = 522,963.07 × 276,727.16
  4. Step 4: Simplify right side
    378,816.32x = 144,718,085,145.98
  5. Step 5: Solve for x
    x = 144,718,085,145.98/378,816.32
  6. Step 6: Final answer
    x = 382,027.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.