Home / 571,029.12-787,952.88-329,310.72

Finding the Fourth Proportional to 571,029.12, 787,952.88 and 329,310.72

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Solution

The fourth proportional to 571,029.12, 787,952.88 and 329,310.72 is: 454,409.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,029.12 : 787,952.88 = 329,310.72 : x
  2. Step 2: Convert to fraction form
    571,029.12/787,952.88 = 329,310.72/x
  3. Step 3: Cross multiply
    571,029.12x = 787,952.88 × 329,310.72
  4. Step 4: Simplify right side
    571,029.12x = 259,481,330,238.87
  5. Step 5: Solve for x
    x = 259,481,330,238.87/571,029.12
  6. Step 6: Final answer
    x = 454,409.98

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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.