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Finding the Fourth Proportional to 419,057.55, 628,683.93 and 119,542.23

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Solution

The fourth proportional to 419,057.55, 628,683.93 and 119,542.23 is: 179,341.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,057.55 : 628,683.93 = 119,542.23 : x
  2. Step 2: Convert to fraction form
    419,057.55/628,683.93 = 119,542.23/x
  3. Step 3: Cross multiply
    419,057.55x = 628,683.93 × 119,542.23
  4. Step 4: Simplify right side
    419,057.55x = 75,154,278,957.36
  5. Step 5: Solve for x
    x = 75,154,278,957.36/419,057.55
  6. Step 6: Final answer
    x = 179,341.19

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1.5x scale

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.