Home / 810,006.40-1,215,009.60-798,196.60

Finding the Fourth Proportional to 810,006.40, 1,215,009.60 and 798,196.60

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Solution

The fourth proportional to 810,006.40, 1,215,009.60 and 798,196.60 is: 1,197,294.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,006.40 : 1,215,009.60 = 798,196.60 : x
  2. Step 2: Convert to fraction form
    810,006.40/1,215,009.60 = 798,196.60/x
  3. Step 3: Cross multiply
    810,006.40x = 1,215,009.60 × 798,196.60
  4. Step 4: Simplify right side
    810,006.40x = 969,816,531,687.36
  5. Step 5: Solve for x
    x = 969,816,531,687.36/810,006.40
  6. Step 6: Final answer
    x = 1,197,294.90

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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.