Home / 2,099,328.20-3,149,381.10-679,430.60

Finding the Fourth Proportional to 2,099,328.20, 3,149,381.10 and 679,430.60

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Solution

The fourth proportional to 2,099,328.20, 3,149,381.10 and 679,430.60 is: 1,019,271.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,099,328.20 : 3,149,381.10 = 679,430.60 : x
  2. Step 2: Convert to fraction form
    2,099,328.20/3,149,381.10 = 679,430.60/x
  3. Step 3: Cross multiply
    2,099,328.20x = 3,149,381.10 × 679,430.60
  4. Step 4: Simplify right side
    2,099,328.20x = 2,139,785,890,401.66
  5. Step 5: Solve for x
    x = 2,139,785,890,401.66/2,099,328.20
  6. Step 6: Final answer
    x = 1,019,271.73

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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.