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Finding the Fourth Proportional to 682,862.71, 942,350.72 and 376,939.27

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Solution

The fourth proportional to 682,862.71, 942,350.72 and 376,939.27 is: 520,176.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,862.71 : 942,350.72 = 376,939.27 : x
  2. Step 2: Convert to fraction form
    682,862.71/942,350.72 = 376,939.27/x
  3. Step 3: Cross multiply
    682,862.71x = 942,350.72 × 376,939.27
  4. Step 4: Simplify right side
    682,862.71x = 355,208,992,480.77
  5. Step 5: Solve for x
    x = 355,208,992,480.77/682,862.71
  6. Step 6: Final answer
    x = 520,176.29

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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.