Home / 727,832.55-1,004,412.92-422,090.21

Finding the Fourth Proportional to 727,832.55, 1,004,412.92 and 422,090.21

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Solution

The fourth proportional to 727,832.55, 1,004,412.92 and 422,090.21 is: 582,486.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,832.55 : 1,004,412.92 = 422,090.21 : x
  2. Step 2: Convert to fraction form
    727,832.55/1,004,412.92 = 422,090.21/x
  3. Step 3: Cross multiply
    727,832.55x = 1,004,412.92 × 422,090.21
  4. Step 4: Simplify right side
    727,832.55x = 423,952,853,197.00
  5. Step 5: Solve for x
    x = 423,952,853,197.00/727,832.55
  6. Step 6: Final answer
    x = 582,486.80

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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.