Home / 682,990.18-942,845.37-396,455.11

Finding the Fourth Proportional to 682,990.18, 942,845.37 and 396,455.11

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Solution

The fourth proportional to 682,990.18, 942,845.37 and 396,455.11 is: 547,293.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    682,990.18 : 942,845.37 = 396,455.11 : x
  2. Step 2: Convert to fraction form
    682,990.18/942,845.37 = 396,455.11/x
  3. Step 3: Cross multiply
    682,990.18x = 942,845.37 × 396,455.11
  4. Step 4: Simplify right side
    682,990.18x = 373,795,861,032.52
  5. Step 5: Solve for x
    x = 373,795,861,032.52/682,990.18
  6. Step 6: Final answer
    x = 547,293.17

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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.