Home / 1,987,288.20-2,977,433.10-1,630,369.80

Finding the Fourth Proportional to 1,987,288.20, 2,977,433.10 and 1,630,369.80

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Solution

The fourth proportional to 1,987,288.20, 2,977,433.10 and 1,630,369.80 is: 2,442,683.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,987,288.20 : 2,977,433.10 = 1,630,369.80 : x
  2. Step 2: Convert to fraction form
    1,987,288.20/2,977,433.10 = 1,630,369.80/x
  3. Step 3: Cross multiply
    1,987,288.20x = 2,977,433.10 × 1,630,369.80
  4. Step 4: Simplify right side
    1,987,288.20x = 4,854,317,007,760.38
  5. Step 5: Solve for x
    x = 4,854,317,007,760.38/1,987,288.20
  6. Step 6: Final answer
    x = 2,442,683.96

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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.