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Finding the Fourth Proportional to 724,661.10, 1,086,663.60 and 275,232.60

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Solution

The fourth proportional to 724,661.10, 1,086,663.60 and 275,232.60 is: 412,724.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,661.10 : 1,086,663.60 = 275,232.60 : x
  2. Step 2: Convert to fraction form
    724,661.10/1,086,663.60 = 275,232.60/x
  3. Step 3: Cross multiply
    724,661.10x = 1,086,663.60 × 275,232.60
  4. Step 4: Simplify right side
    724,661.10x = 299,085,247,953.36
  5. Step 5: Solve for x
    x = 299,085,247,953.36/724,661.10
  6. Step 6: Final answer
    x = 412,724.30

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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.