Home / 790,877.88-1,091,406.04-428,293.44

Finding the Fourth Proportional to 790,877.88, 1,091,406.04 and 428,293.44

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Solution

The fourth proportional to 790,877.88, 1,091,406.04 and 428,293.44 is: 591,042.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,877.88 : 1,091,406.04 = 428,293.44 : x
  2. Step 2: Convert to fraction form
    790,877.88/1,091,406.04 = 428,293.44/x
  3. Step 3: Cross multiply
    790,877.88x = 1,091,406.04 × 428,293.44
  4. Step 4: Simplify right side
    790,877.88x = 467,442,053,141.09
  5. Step 5: Solve for x
    x = 467,442,053,141.09/790,877.88
  6. Step 6: Final answer
    x = 591,042.01

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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.