Home / 745,906.40-1,116,235.20-682,920.80

Finding the Fourth Proportional to 745,906.40, 1,116,235.20 and 682,920.80

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Solution

The fourth proportional to 745,906.40, 1,116,235.20 and 682,920.80 is: 1,021,978.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,906.40 : 1,116,235.20 = 682,920.80 : x
  2. Step 2: Convert to fraction form
    745,906.40/1,116,235.20 = 682,920.80/x
  3. Step 3: Cross multiply
    745,906.40x = 1,116,235.20 × 682,920.80
  4. Step 4: Simplify right side
    745,906.40x = 762,300,235,772.16
  5. Step 5: Solve for x
    x = 762,300,235,772.16/745,906.40
  6. Step 6: Final answer
    x = 1,021,978.41

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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.