Home / 863,666.34-1,295,665.56-331,145.84

Finding the Fourth Proportional to 863,666.34, 1,295,665.56 and 331,145.84

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Solution

The fourth proportional to 863,666.34, 1,295,665.56 and 331,145.84 is: 496,782.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,666.34 : 1,295,665.56 = 331,145.84 : x
  2. Step 2: Convert to fraction form
    863,666.34/1,295,665.56 = 331,145.84/x
  3. Step 3: Cross multiply
    863,666.34x = 1,295,665.56 × 331,145.84
  4. Step 4: Simplify right side
    863,666.34x = 429,054,252,091.21
  5. Step 5: Solve for x
    x = 429,054,252,091.21/863,666.34
  6. Step 6: Final answer
    x = 496,782.42

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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.