Home / 557,734.22-769,738.83-331,379.72

Finding the Fourth Proportional to 557,734.22, 769,738.83 and 331,379.72

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Solution

The fourth proportional to 557,734.22, 769,738.83 and 331,379.72 is: 457,342.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,734.22 : 769,738.83 = 331,379.72 : x
  2. Step 2: Convert to fraction form
    557,734.22/769,738.83 = 331,379.72/x
  3. Step 3: Cross multiply
    557,734.22x = 769,738.83 × 331,379.72
  4. Step 4: Simplify right side
    557,734.22x = 255,075,837,617.69
  5. Step 5: Solve for x
    x = 255,075,837,617.69/557,734.22
  6. Step 6: Final answer
    x = 457,342.99

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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.