Home / 790,198.64-1,090,476.87-427,622.41

Finding the Fourth Proportional to 790,198.64, 1,090,476.87 and 427,622.41

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Solution

The fourth proportional to 790,198.64, 1,090,476.87 and 427,622.41 is: 590,120.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,198.64 : 1,090,476.87 = 427,622.41 : x
  2. Step 2: Convert to fraction form
    790,198.64/1,090,476.87 = 427,622.41/x
  3. Step 3: Cross multiply
    790,198.64x = 1,090,476.87 × 427,622.41
  4. Step 4: Simplify right side
    790,198.64x = 466,312,347,198.66
  5. Step 5: Solve for x
    x = 466,312,347,198.66/790,198.64
  6. Step 6: Final answer
    x = 590,120.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.