Home / 2,280,506.70-3,420,760.05-1,215,000.30

Finding the Fourth Proportional to 2,280,506.70, 3,420,760.05 and 1,215,000.30

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Solution

The fourth proportional to 2,280,506.70, 3,420,760.05 and 1,215,000.30 is: 1,822,500.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,280,506.70 : 3,420,760.05 = 1,215,000.30 : x
  2. Step 2: Convert to fraction form
    2,280,506.70/3,420,760.05 = 1,215,000.30/x
  3. Step 3: Cross multiply
    2,280,506.70x = 3,420,760.05 × 1,215,000.30
  4. Step 4: Simplify right side
    2,280,506.70x = 4,156,224,486,978.02
  5. Step 5: Solve for x
    x = 4,156,224,486,978.02/2,280,506.70
  6. Step 6: Final answer
    x = 1,822,500.45

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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.