Home / 684,978.49-1,027,347.45-211,667.95

Finding the Fourth Proportional to 684,978.49, 1,027,347.45 and 211,667.95

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Solution

The fourth proportional to 684,978.49, 1,027,347.45 and 211,667.95 is: 317,464.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,978.49 : 1,027,347.45 = 211,667.95 : x
  2. Step 2: Convert to fraction form
    684,978.49/1,027,347.45 = 211,667.95/x
  3. Step 3: Cross multiply
    684,978.49x = 1,027,347.45 × 211,667.95
  4. Step 4: Simplify right side
    684,978.49x = 217,456,530,360.29
  5. Step 5: Solve for x
    x = 217,456,530,360.29/684,978.49
  6. Step 6: Final answer
    x = 317,464.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.