Home / 687,527.64-1,031,319.44-327,513.44

Finding the Fourth Proportional to 687,527.64, 1,031,319.44 and 327,513.44

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Solution

The fourth proportional to 687,527.64, 1,031,319.44 and 327,513.44 is: 491,283.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,527.64 : 1,031,319.44 = 327,513.44 : x
  2. Step 2: Convert to fraction form
    687,527.64/1,031,319.44 = 327,513.44/x
  3. Step 3: Cross multiply
    687,527.64x = 1,031,319.44 × 327,513.44
  4. Step 4: Simplify right side
    687,527.64x = 337,770,977,533.27
  5. Step 5: Solve for x
    x = 337,770,977,533.27/687,527.64
  6. Step 6: Final answer
    x = 491,283.49

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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.