Home / 864,007.20-1,295,396.40-331,322.40

Finding the Fourth Proportional to 864,007.20, 1,295,396.40 and 331,322.40

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Solution

The fourth proportional to 864,007.20, 1,295,396.40 and 331,322.40 is: 496,747.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,007.20 : 1,295,396.40 = 331,322.40 : x
  2. Step 2: Convert to fraction form
    864,007.20/1,295,396.40 = 331,322.40/x
  3. Step 3: Cross multiply
    864,007.20x = 1,295,396.40 × 331,322.40
  4. Step 4: Simplify right side
    864,007.20x = 429,193,844,199.36
  5. Step 5: Solve for x
    x = 429,193,844,199.36/864,007.20
  6. Step 6: Final answer
    x = 496,747.99

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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.