Home / 724,220.82-1,086,326.91-393,896.34

Finding the Fourth Proportional to 724,220.82, 1,086,326.91 and 393,896.34

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Solution

The fourth proportional to 724,220.82, 1,086,326.91 and 393,896.34 is: 590,842.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,220.82 : 1,086,326.91 = 393,896.34 : x
  2. Step 2: Convert to fraction form
    724,220.82/1,086,326.91 = 393,896.34/x
  3. Step 3: Cross multiply
    724,220.82x = 1,086,326.91 × 393,896.34
  4. Step 4: Simplify right side
    724,220.82x = 427,900,193,892.51
  5. Step 5: Solve for x
    x = 427,900,193,892.51/724,220.82
  6. Step 6: Final answer
    x = 590,842.16

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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.