Home / 789,449.22-1,089,374.13-445,266.18

Finding the Fourth Proportional to 789,449.22, 1,089,374.13 and 445,266.18

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Solution

The fourth proportional to 789,449.22, 1,089,374.13 and 445,266.18 is: 614,430.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,449.22 : 1,089,374.13 = 445,266.18 : x
  2. Step 2: Convert to fraction form
    789,449.22/1,089,374.13 = 445,266.18/x
  3. Step 3: Cross multiply
    789,449.22x = 1,089,374.13 × 445,266.18
  4. Step 4: Simplify right side
    789,449.22x = 485,061,457,455.92
  5. Step 5: Solve for x
    x = 485,061,457,455.92/789,449.22
  6. Step 6: Final answer
    x = 614,430.22

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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.