Home / 885,308.80-1,326,213.60-485,233.60

Finding the Fourth Proportional to 885,308.80, 1,326,213.60 and 485,233.60

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Solution

The fourth proportional to 885,308.80, 1,326,213.60 and 485,233.60 is: 726,891.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,308.80 : 1,326,213.60 = 485,233.60 : x
  2. Step 2: Convert to fraction form
    885,308.80/1,326,213.60 = 485,233.60/x
  3. Step 3: Cross multiply
    885,308.80x = 1,326,213.60 × 485,233.60
  4. Step 4: Simplify right side
    885,308.80x = 643,523,399,496.96
  5. Step 5: Solve for x
    x = 643,523,399,496.96/885,308.80
  6. Step 6: Final answer
    x = 726,891.45

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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.