Home / 886,428.72-1,223,270.64-523,983.60

Finding the Fourth Proportional to 886,428.72, 1,223,270.64 and 523,983.60

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Solution

The fourth proportional to 886,428.72, 1,223,270.64 and 523,983.60 is: 723,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,428.72 : 1,223,270.64 = 523,983.60 : x
  2. Step 2: Convert to fraction form
    886,428.72/1,223,270.64 = 523,983.60/x
  3. Step 3: Cross multiply
    886,428.72x = 1,223,270.64 × 523,983.60
  4. Step 4: Simplify right side
    886,428.72x = 640,973,753,721.50
  5. Step 5: Solve for x
    x = 640,973,753,721.50/886,428.72
  6. Step 6: Final answer
    x = 723,096.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.