Home / 557,729.24-769,778.10-331,331

Finding the Fourth Proportional to 557,729.24, 769,778.10 and 331,331

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Solution

The fourth proportional to 557,729.24, 769,778.10 and 331,331 is: 457,303.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,729.24 : 769,778.10 = 331,331 : x
  2. Step 2: Convert to fraction form
    557,729.24/769,778.10 = 331,331/x
  3. Step 3: Cross multiply
    557,729.24x = 769,778.10 × 331,331
  4. Step 4: Simplify right side
    557,729.24x = 255,051,347,651.10
  5. Step 5: Solve for x
    x = 255,051,347,651.10/557,729.24
  6. Step 6: Final answer
    x = 457,303.17

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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.