Home / 684,980.75-1,027,350.83-211,670.21

Finding the Fourth Proportional to 684,980.75, 1,027,350.83 and 211,670.21

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Solution

The fourth proportional to 684,980.75, 1,027,350.83 and 211,670.21 is: 317,468.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,980.75 : 1,027,350.83 = 211,670.21 : x
  2. Step 2: Convert to fraction form
    684,980.75/1,027,350.83 = 211,670.21/x
  3. Step 3: Cross multiply
    684,980.75x = 1,027,350.83 × 211,670.21
  4. Step 4: Simplify right side
    684,980.75x = 217,459,569,027.33
  5. Step 5: Solve for x
    x = 217,459,569,027.33/684,980.75
  6. Step 6: Final answer
    x = 317,468.15

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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.