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Finding the Fourth Proportional to 485,504.88, 727,296.12 and 228,986.16

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Solution

The fourth proportional to 485,504.88, 727,296.12 and 228,986.16 is: 343,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,504.88 : 727,296.12 = 228,986.16 : x
  2. Step 2: Convert to fraction form
    485,504.88/727,296.12 = 228,986.16/x
  3. Step 3: Cross multiply
    485,504.88x = 727,296.12 × 228,986.16
  4. Step 4: Simplify right side
    485,504.88x = 166,540,745,701.70
  5. Step 5: Solve for x
    x = 166,540,745,701.70/485,504.88
  6. Step 6: Final answer
    x = 343,025.89

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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.