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Finding the Fourth Proportional to 485,072.99, 727,057.72 and 295,114.66

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Solution

The fourth proportional to 485,072.99, 727,057.72 and 295,114.66 is: 442,336.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,072.99 : 727,057.72 = 295,114.66 : x
  2. Step 2: Convert to fraction form
    485,072.99/727,057.72 = 295,114.66/x
  3. Step 3: Cross multiply
    485,072.99x = 727,057.72 × 295,114.66
  4. Step 4: Simplify right side
    485,072.99x = 214,565,390,389.42
  5. Step 5: Solve for x
    x = 214,565,390,389.42/485,072.99
  6. Step 6: Final answer
    x = 442,336.30

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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.