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Finding the Fourth Proportional to 682,773.17, 942,545.79 and 396,237.87

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Solution

The fourth proportional to 682,773.17, 942,545.79 and 396,237.87 is: 546,993.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,773.17 : 942,545.79 = 396,237.87 : x
  2. Step 2: Convert to fraction form
    682,773.17/942,545.79 = 396,237.87/x
  3. Step 3: Cross multiply
    682,773.17x = 942,545.79 × 396,237.87
  4. Step 4: Simplify right side
    682,773.17x = 373,472,336,207.07
  5. Step 5: Solve for x
    x = 373,472,336,207.07/682,773.17
  6. Step 6: Final answer
    x = 546,993.28

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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.