Home / 885,220.80-1,326,081.60-485,145.60

Finding the Fourth Proportional to 885,220.80, 1,326,081.60 and 485,145.60

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Solution

The fourth proportional to 885,220.80, 1,326,081.60 and 485,145.60 is: 726,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,220.80 : 1,326,081.60 = 485,145.60 : x
  2. Step 2: Convert to fraction form
    885,220.80/1,326,081.60 = 485,145.60/x
  3. Step 3: Cross multiply
    885,220.80x = 1,326,081.60 × 485,145.60
  4. Step 4: Simplify right side
    885,220.80x = 643,342,653,480.96
  5. Step 5: Solve for x
    x = 643,342,653,480.96/885,220.80
  6. Step 6: Final answer
    x = 726,759.53

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Double scale
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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.