Home / 743,195.37-1,025,575.18-420,907.82

Finding the Fourth Proportional to 743,195.37, 1,025,575.18 and 420,907.82

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Solution

The fourth proportional to 743,195.37, 1,025,575.18 and 420,907.82 is: 580,833.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,195.37 : 1,025,575.18 = 420,907.82 : x
  2. Step 2: Convert to fraction form
    743,195.37/1,025,575.18 = 420,907.82/x
  3. Step 3: Cross multiply
    743,195.37x = 1,025,575.18 × 420,907.82
  4. Step 4: Simplify right side
    743,195.37x = 431,672,614,771.58
  5. Step 5: Solve for x
    x = 431,672,614,771.58/743,195.37
  6. Step 6: Final answer
    x = 580,833.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.