Home / 789,642.36-1,089,706.44-427,066.20

Finding the Fourth Proportional to 789,642.36, 1,089,706.44 and 427,066.20

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Solution

The fourth proportional to 789,642.36, 1,089,706.44 and 427,066.20 is: 589,351.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,642.36 : 1,089,706.44 = 427,066.20 : x
  2. Step 2: Convert to fraction form
    789,642.36/1,089,706.44 = 427,066.20/x
  3. Step 3: Cross multiply
    789,642.36x = 1,089,706.44 × 427,066.20
  4. Step 4: Simplify right side
    789,642.36x = 465,376,788,446.33
  5. Step 5: Solve for x
    x = 465,376,788,446.33/789,642.36
  6. Step 6: Final answer
    x = 589,351.35

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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.