Home / 428,513.13-591,354-234,939.06

Finding the Fourth Proportional to 428,513.13, 591,354 and 234,939.06

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Solution

The fourth proportional to 428,513.13, 591,354 and 234,939.06 is: 324,219.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,513.13 : 591,354 = 234,939.06 : x
  2. Step 2: Convert to fraction form
    428,513.13/591,354 = 234,939.06/x
  3. Step 3: Cross multiply
    428,513.13x = 591,354 × 234,939.06
  4. Step 4: Simplify right side
    428,513.13x = 138,932,152,887.24
  5. Step 5: Solve for x
    x = 138,932,152,887.24/428,513.13
  6. Step 6: Final answer
    x = 324,219.13

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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.