Home / 789,560.88-1,089,605.03-445,412.75

Finding the Fourth Proportional to 789,560.88, 1,089,605.03 and 445,412.75

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Solution

The fourth proportional to 789,560.88, 1,089,605.03 and 445,412.75 is: 614,675.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,560.88 : 1,089,605.03 = 445,412.75 : x
  2. Step 2: Convert to fraction form
    789,560.88/1,089,605.03 = 445,412.75/x
  3. Step 3: Cross multiply
    789,560.88x = 1,089,605.03 × 445,412.75
  4. Step 4: Simplify right side
    789,560.88x = 485,323,965,151.04
  5. Step 5: Solve for x
    x = 485,323,965,151.04/789,560.88
  6. Step 6: Final answer
    x = 614,675.80

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.