Home / 790,361.28-1,090,701.45-427,789.89

Finding the Fourth Proportional to 790,361.28, 1,090,701.45 and 427,789.89

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Solution

The fourth proportional to 790,361.28, 1,090,701.45 and 427,789.89 is: 590,351.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,361.28 : 1,090,701.45 = 427,789.89 : x
  2. Step 2: Convert to fraction form
    790,361.28/1,090,701.45 = 427,789.89/x
  3. Step 3: Cross multiply
    790,361.28x = 1,090,701.45 × 427,789.89
  4. Step 4: Simplify right side
    790,361.28x = 466,591,053,318.34
  5. Step 5: Solve for x
    x = 466,591,053,318.34/790,361.28
  6. Step 6: Final answer
    x = 590,351.61

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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.