Home / 743,393.82-1,114,922.55-343,815.24

Finding the Fourth Proportional to 743,393.82, 1,114,922.55 and 343,815.24

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Solution

The fourth proportional to 743,393.82, 1,114,922.55 and 343,815.24 is: 515,645.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,393.82 : 1,114,922.55 = 343,815.24 : x
  2. Step 2: Convert to fraction form
    743,393.82/1,114,922.55 = 343,815.24/x
  3. Step 3: Cross multiply
    743,393.82x = 1,114,922.55 × 343,815.24
  4. Step 4: Simplify right side
    743,393.82x = 383,327,364,109.66
  5. Step 5: Solve for x
    x = 383,327,364,109.66/743,393.82
  6. Step 6: Final answer
    x = 515,645.08

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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.