Home / 804,992.80-1,207,489.20-724,813.60

Finding the Fourth Proportional to 804,992.80, 1,207,489.20 and 724,813.60

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Solution

The fourth proportional to 804,992.80, 1,207,489.20 and 724,813.60 is: 1,087,220.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,992.80 : 1,207,489.20 = 724,813.60 : x
  2. Step 2: Convert to fraction form
    804,992.80/1,207,489.20 = 724,813.60/x
  3. Step 3: Cross multiply
    804,992.80x = 1,207,489.20 × 724,813.60
  4. Step 4: Simplify right side
    804,992.80x = 875,204,594,013.12
  5. Step 5: Solve for x
    x = 875,204,594,013.12/804,992.80
  6. Step 6: Final answer
    x = 1,087,220.40

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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.