Home / 428,278.08-591,003.84-234,684.64

Finding the Fourth Proportional to 428,278.08, 591,003.84 and 234,684.64

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Solution

The fourth proportional to 428,278.08, 591,003.84 and 234,684.64 is: 323,853.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,278.08 : 591,003.84 = 234,684.64 : x
  2. Step 2: Convert to fraction form
    428,278.08/591,003.84 = 234,684.64/x
  3. Step 3: Cross multiply
    428,278.08x = 591,003.84 × 234,684.64
  4. Step 4: Simplify right side
    428,278.08x = 138,699,523,429.02
  5. Step 5: Solve for x
    x = 138,699,523,429.02/428,278.08
  6. Step 6: Final answer
    x = 323,853.89

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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.