Home / 455,318.40-628,421.66-271,568.76

Finding the Fourth Proportional to 455,318.40, 628,421.66 and 271,568.76

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Solution

The fourth proportional to 455,318.40, 628,421.66 and 271,568.76 is: 374,813.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,318.40 : 628,421.66 = 271,568.76 : x
  2. Step 2: Convert to fraction form
    455,318.40/628,421.66 = 271,568.76/x
  3. Step 3: Cross multiply
    455,318.40x = 628,421.66 × 271,568.76
  4. Step 4: Simplify right side
    455,318.40x = 170,659,686,463.39
  5. Step 5: Solve for x
    x = 170,659,686,463.39/455,318.40
  6. Step 6: Final answer
    x = 374,813.95

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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.