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Finding the Fourth Proportional to 455,695.44, 628,856.71 and 251,759.51

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Solution

The fourth proportional to 455,695.44, 628,856.71 and 251,759.51 is: 347,426.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,695.44 : 628,856.71 = 251,759.51 : x
  2. Step 2: Convert to fraction form
    455,695.44/628,856.71 = 251,759.51/x
  3. Step 3: Cross multiply
    455,695.44x = 628,856.71 × 251,759.51
  4. Step 4: Simplify right side
    455,695.44x = 158,320,657,170.49
  5. Step 5: Solve for x
    x = 158,320,657,170.49/455,695.44
  6. Step 6: Final answer
    x = 347,426.47

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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.