Home / 782,829.93-1,080,305.46-476,906.30

Finding the Fourth Proportional to 782,829.93, 1,080,305.46 and 476,906.30

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Solution

The fourth proportional to 782,829.93, 1,080,305.46 and 476,906.30 is: 658,130.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,829.93 : 1,080,305.46 = 476,906.30 : x
  2. Step 2: Convert to fraction form
    782,829.93/1,080,305.46 = 476,906.30/x
  3. Step 3: Cross multiply
    782,829.93x = 1,080,305.46 × 476,906.30
  4. Step 4: Simplify right side
    782,829.93x = 515,204,479,798.40
  5. Step 5: Solve for x
    x = 515,204,479,798.40/782,829.93
  6. Step 6: Final answer
    x = 658,130.79

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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.