Home / 684,617.40-1,027,071.90-211,350.60

Finding the Fourth Proportional to 684,617.40, 1,027,071.90 and 211,350.60

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Solution

The fourth proportional to 684,617.40, 1,027,071.90 and 211,350.60 is: 317,070.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,617.40 : 1,027,071.90 = 211,350.60 : x
  2. Step 2: Convert to fraction form
    684,617.40/1,027,071.90 = 211,350.60/x
  3. Step 3: Cross multiply
    684,617.40x = 1,027,071.90 × 211,350.60
  4. Step 4: Simplify right side
    684,617.40x = 217,072,262,308.14
  5. Step 5: Solve for x
    x = 217,072,262,308.14/684,617.40
  6. Step 6: Final answer
    x = 317,070.91

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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.