Home / 684,807.40-1,027,356.90-211,540.60

Finding the Fourth Proportional to 684,807.40, 1,027,356.90 and 211,540.60

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Solution

The fourth proportional to 684,807.40, 1,027,356.90 and 211,540.60 is: 317,355.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,807.40 : 1,027,356.90 = 211,540.60 : x
  2. Step 2: Convert to fraction form
    684,807.40/1,027,356.90 = 211,540.60/x
  3. Step 3: Cross multiply
    684,807.40x = 1,027,356.90 × 211,540.60
  4. Step 4: Simplify right side
    684,807.40x = 217,327,695,040.14
  5. Step 5: Solve for x
    x = 217,327,695,040.14/684,807.40
  6. Step 6: Final answer
    x = 317,355.94

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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.