Home / 885,296.80-1,326,195.60-485,221.60

Finding the Fourth Proportional to 885,296.80, 1,326,195.60 and 485,221.60

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Solution

The fourth proportional to 885,296.80, 1,326,195.60 and 485,221.60 is: 726,873.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,296.80 : 1,326,195.60 = 485,221.60 : x
  2. Step 2: Convert to fraction form
    885,296.80/1,326,195.60 = 485,221.60/x
  3. Step 3: Cross multiply
    885,296.80x = 1,326,195.60 × 485,221.60
  4. Step 4: Simplify right side
    885,296.80x = 643,498,750,944.96
  5. Step 5: Solve for x
    x = 643,498,750,944.96/885,296.80
  6. Step 6: Final answer
    x = 726,873.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.