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Finding the Fourth Proportional to 605,450.40, 908,175.60 and 418,826.40

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Solution

The fourth proportional to 605,450.40, 908,175.60 and 418,826.40 is: 628,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,450.40 : 908,175.60 = 418,826.40 : x
  2. Step 2: Convert to fraction form
    605,450.40/908,175.60 = 418,826.40/x
  3. Step 3: Cross multiply
    605,450.40x = 908,175.60 × 418,826.40
  4. Step 4: Simplify right side
    605,450.40x = 380,367,917,115.84
  5. Step 5: Solve for x
    x = 380,367,917,115.84/605,450.40
  6. Step 6: Final answer
    x = 628,239.60

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.