Home / 790,871.22-1,091,400.62-428,293.96

Finding the Fourth Proportional to 790,871.22, 1,091,400.62 and 428,293.96

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Solution

The fourth proportional to 790,871.22, 1,091,400.62 and 428,293.96 is: 591,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,871.22 : 1,091,400.62 = 428,293.96 : x
  2. Step 2: Convert to fraction form
    790,871.22/1,091,400.62 = 428,293.96/x
  3. Step 3: Cross multiply
    790,871.22x = 1,091,400.62 × 428,293.96
  4. Step 4: Simplify right side
    790,871.22x = 467,440,291,344.79
  5. Step 5: Solve for x
    x = 467,440,291,344.79/790,871.22
  6. Step 6: Final answer
    x = 591,044.76

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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.