Home / 3,120,503.70-4,680,755.55-1,772,145.30

Finding the Fourth Proportional to 3,120,503.70, 4,680,755.55 and 1,772,145.30

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Solution

The fourth proportional to 3,120,503.70, 4,680,755.55 and 1,772,145.30 is: 2,658,217.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,503.70 : 4,680,755.55 = 1,772,145.30 : x
  2. Step 2: Convert to fraction form
    3,120,503.70/4,680,755.55 = 1,772,145.30/x
  3. Step 3: Cross multiply
    3,120,503.70x = 4,680,755.55 × 1,772,145.30
  4. Step 4: Simplify right side
    3,120,503.70x = 8,294,978,948,381.42
  5. Step 5: Solve for x
    x = 8,294,978,948,381.42/3,120,503.70
  6. Step 6: Final answer
    x = 2,658,217.95

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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.