Home / 687,485.38-1,031,256.01-327,471.16

Finding the Fourth Proportional to 687,485.38, 1,031,256.01 and 327,471.16

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Solution

The fourth proportional to 687,485.38, 1,031,256.01 and 327,471.16 is: 491,220.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,485.38 : 1,031,256.01 = 327,471.16 : x
  2. Step 2: Convert to fraction form
    687,485.38/1,031,256.01 = 327,471.16/x
  3. Step 3: Cross multiply
    687,485.38x = 1,031,256.01 × 327,471.16
  4. Step 4: Simplify right side
    687,485.38x = 337,706,596,695.39
  5. Step 5: Solve for x
    x = 337,706,596,695.39/687,485.38
  6. Step 6: Final answer
    x = 491,220.04

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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.