Home / 455,318.16-628,421.30-271,568.50

Finding the Fourth Proportional to 455,318.16, 628,421.30 and 271,568.50

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Solution

The fourth proportional to 455,318.16, 628,421.30 and 271,568.50 is: 374,813.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,318.16 : 628,421.30 = 271,568.50 : x
  2. Step 2: Convert to fraction form
    455,318.16/628,421.30 = 271,568.50/x
  3. Step 3: Cross multiply
    455,318.16x = 628,421.30 × 271,568.50
  4. Step 4: Simplify right side
    455,318.16x = 170,659,429,809.05
  5. Step 5: Solve for x
    x = 170,659,429,809.05/455,318.16
  6. Step 6: Final answer
    x = 374,813.58

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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.