Home / 807,977.52-1,114,878.60-485,610.48

Finding the Fourth Proportional to 807,977.52, 1,114,878.60 and 485,610.48

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Solution

The fourth proportional to 807,977.52, 1,114,878.60 and 485,610.48 is: 670,064.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,977.52 : 1,114,878.60 = 485,610.48 : x
  2. Step 2: Convert to fraction form
    807,977.52/1,114,878.60 = 485,610.48/x
  3. Step 3: Cross multiply
    807,977.52x = 1,114,878.60 × 485,610.48
  4. Step 4: Simplify right side
    807,977.52x = 541,396,732,087.73
  5. Step 5: Solve for x
    x = 541,396,732,087.73/807,977.52
  6. Step 6: Final answer
    x = 670,064.10

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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.