Home / 919,669.38-1,379,488.14-413,872.44

Finding the Fourth Proportional to 919,669.38, 1,379,488.14 and 413,872.44

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Solution

The fourth proportional to 919,669.38, 1,379,488.14 and 413,872.44 is: 620,801.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,669.38 : 1,379,488.14 = 413,872.44 : x
  2. Step 2: Convert to fraction form
    919,669.38/1,379,488.14 = 413,872.44/x
  3. Step 3: Cross multiply
    919,669.38x = 1,379,488.14 × 413,872.44
  4. Step 4: Simplify right side
    919,669.38x = 570,932,122,452.86
  5. Step 5: Solve for x
    x = 570,932,122,452.86/919,669.38
  6. Step 6: Final answer
    x = 620,801.49

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1.5x scale

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.