Home / 810,544.60-1,215,817.86-211,505.32

Finding the Fourth Proportional to 810,544.60, 1,215,817.86 and 211,505.32

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Solution

The fourth proportional to 810,544.60, 1,215,817.86 and 211,505.32 is: 317,258.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,544.60 : 1,215,817.86 = 211,505.32 : x
  2. Step 2: Convert to fraction form
    810,544.60/1,215,817.86 = 211,505.32/x
  3. Step 3: Cross multiply
    810,544.60x = 1,215,817.86 × 211,505.32
  4. Step 4: Simplify right side
    810,544.60x = 257,151,945,541.02
  5. Step 5: Solve for x
    x = 257,151,945,541.02/810,544.60
  6. Step 6: Final answer
    x = 317,258.23

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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.