Home / 1,413,941.80-2,120,912.70-667,445.80

Finding the Fourth Proportional to 1,413,941.80, 2,120,912.70 and 667,445.80

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Solution

The fourth proportional to 1,413,941.80, 2,120,912.70 and 667,445.80 is: 1,001,168.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,413,941.80 : 2,120,912.70 = 667,445.80 : x
  2. Step 2: Convert to fraction form
    1,413,941.80/2,120,912.70 = 667,445.80/x
  3. Step 3: Cross multiply
    1,413,941.80x = 2,120,912.70 × 667,445.80
  4. Step 4: Simplify right side
    1,413,941.80x = 1,415,594,273,781.66
  5. Step 5: Solve for x
    x = 1,415,594,273,781.66/1,413,941.80
  6. Step 6: Final answer
    x = 1,001,168.70

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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.