Home / 557,855.75-769,840.88-331,501.25

Finding the Fourth Proportional to 557,855.75, 769,840.88 and 331,501.25

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Solution

The fourth proportional to 557,855.75, 769,840.88 and 331,501.25 is: 457,471.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,855.75 : 769,840.88 = 331,501.25 : x
  2. Step 2: Convert to fraction form
    557,855.75/769,840.88 = 331,501.25/x
  3. Step 3: Cross multiply
    557,855.75x = 769,840.88 × 331,501.25
  4. Step 4: Simplify right side
    557,855.75x = 255,203,214,288.20
  5. Step 5: Solve for x
    x = 255,203,214,288.20/557,855.75
  6. Step 6: Final answer
    x = 457,471.69

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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.