Home / 1,260,590.50-1,890,902.22-419,142.25

Finding the Fourth Proportional to 1,260,590.50, 1,890,902.22 and 419,142.25

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Solution

The fourth proportional to 1,260,590.50, 1,890,902.22 and 419,142.25 is: 628,718.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,260,590.50 : 1,890,902.22 = 419,142.25 : x
  2. Step 2: Convert to fraction form
    1,260,590.50/1,890,902.22 = 419,142.25/x
  3. Step 3: Cross multiply
    1,260,590.50x = 1,890,902.22 × 419,142.25
  4. Step 4: Simplify right side
    1,260,590.50x = 792,557,011,020.80
  5. Step 5: Solve for x
    x = 792,557,011,020.80/1,260,590.50
  6. Step 6: Final answer
    x = 628,718.85

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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.