Home / 455,320.32-628,342.83-251,371.56

Finding the Fourth Proportional to 455,320.32, 628,342.83 and 251,371.56

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Solution

The fourth proportional to 455,320.32, 628,342.83 and 251,371.56 is: 346,893.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,320.32 : 628,342.83 = 251,371.56 : x
  2. Step 2: Convert to fraction form
    455,320.32/628,342.83 = 251,371.56/x
  3. Step 3: Cross multiply
    455,320.32x = 628,342.83 × 251,371.56
  4. Step 4: Simplify right side
    455,320.32x = 157,947,517,391.92
  5. Step 5: Solve for x
    x = 157,947,517,391.92/455,320.32
  6. Step 6: Final answer
    x = 346,893.19

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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.