Home / 378,815.32-522,961.69-276,726.16

Finding the Fourth Proportional to 378,815.32, 522,961.69 and 276,726.16

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Solution

The fourth proportional to 378,815.32, 522,961.69 and 276,726.16 is: 382,025.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,815.32 : 522,961.69 = 276,726.16 : x
  2. Step 2: Convert to fraction form
    378,815.32/522,961.69 = 276,726.16/x
  3. Step 3: Cross multiply
    378,815.32x = 522,961.69 × 276,726.16
  4. Step 4: Simplify right side
    378,815.32x = 144,717,180,300.81
  5. Step 5: Solve for x
    x = 144,717,180,300.81/378,815.32
  6. Step 6: Final answer
    x = 382,025.68

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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.