Home / 455,280.89-628,283.78-251,327.43

Finding the Fourth Proportional to 455,280.89, 628,283.78 and 251,327.43

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Solution

The fourth proportional to 455,280.89, 628,283.78 and 251,327.43 is: 346,829.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,280.89 : 628,283.78 = 251,327.43 : x
  2. Step 2: Convert to fraction form
    455,280.89/628,283.78 = 251,327.43/x
  3. Step 3: Cross multiply
    455,280.89x = 628,283.78 × 251,327.43
  4. Step 4: Simplify right side
    455,280.89x = 157,904,949,765.26
  5. Step 5: Solve for x
    x = 157,904,949,765.26/455,280.89
  6. Step 6: Final answer
    x = 346,829.73

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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.