Home / 455,316.37-628,418.86-271,566.72

Finding the Fourth Proportional to 455,316.37, 628,418.86 and 271,566.72

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Solution

The fourth proportional to 455,316.37, 628,418.86 and 271,566.72 is: 374,811.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,316.37 : 628,418.86 = 271,566.72 : x
  2. Step 2: Convert to fraction form
    455,316.37/628,418.86 = 271,566.72/x
  3. Step 3: Cross multiply
    455,316.37x = 628,418.86 × 271,566.72
  4. Step 4: Simplify right side
    455,316.37x = 170,657,647,917.42
  5. Step 5: Solve for x
    x = 170,657,647,917.42/455,316.37
  6. Step 6: Final answer
    x = 374,811.14

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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.