Home / 679,812.75-1,020,168.33-320,086.47

Finding the Fourth Proportional to 679,812.75, 1,020,168.33 and 320,086.47

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Solution

The fourth proportional to 679,812.75, 1,020,168.33 and 320,086.47 is: 480,341.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,812.75 : 1,020,168.33 = 320,086.47 : x
  2. Step 2: Convert to fraction form
    679,812.75/1,020,168.33 = 320,086.47/x
  3. Step 3: Cross multiply
    679,812.75x = 1,020,168.33 × 320,086.47
  4. Step 4: Simplify right side
    679,812.75x = 326,542,079,555.50
  5. Step 5: Solve for x
    x = 326,542,079,555.50/679,812.75
  6. Step 6: Final answer
    x = 480,341.21

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