Home / 790,240.97-1,090,535.31-427,664.72

Finding the Fourth Proportional to 790,240.97, 1,090,535.31 and 427,664.72

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Solution

The fourth proportional to 790,240.97, 1,090,535.31 and 427,664.72 is: 590,178.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,240.97 : 1,090,535.31 = 427,664.72 : x
  2. Step 2: Convert to fraction form
    790,240.97/1,090,535.31 = 427,664.72/x
  3. Step 3: Cross multiply
    790,240.97x = 1,090,535.31 × 427,664.72
  4. Step 4: Simplify right side
    790,240.97x = 466,383,472,548.59
  5. Step 5: Solve for x
    x = 466,383,472,548.59/790,240.97
  6. Step 6: Final answer
    x = 590,178.81

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1.5x scale

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.