Home / 864,009.20-1,295,399.40-331,324.40

Finding the Fourth Proportional to 864,009.20, 1,295,399.40 and 331,324.40

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Solution

The fourth proportional to 864,009.20, 1,295,399.40 and 331,324.40 is: 496,750.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,009.20 : 1,295,399.40 = 331,324.40 : x
  2. Step 2: Convert to fraction form
    864,009.20/1,295,399.40 = 331,324.40/x
  3. Step 3: Cross multiply
    864,009.20x = 1,295,399.40 × 331,324.40
  4. Step 4: Simplify right side
    864,009.20x = 429,197,428,965.36
  5. Step 5: Solve for x
    x = 429,197,428,965.36/864,009.20
  6. Step 6: Final answer
    x = 496,750.99

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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.