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Finding the Fourth Proportional to 626,542.70, 864,648.22 and 368,372.81

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Solution

The fourth proportional to 626,542.70, 864,648.22 and 368,372.81 is: 508,365.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,542.70 : 864,648.22 = 368,372.81 : x
  2. Step 2: Convert to fraction form
    626,542.70/864,648.22 = 368,372.81/x
  3. Step 3: Cross multiply
    626,542.70x = 864,648.22 × 368,372.81
  4. Step 4: Simplify right side
    626,542.70x = 318,512,896,394.29
  5. Step 5: Solve for x
    x = 318,512,896,394.29/626,542.70
  6. Step 6: Final answer
    x = 508,365.83

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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.