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Finding the Fourth Proportional to 665,229.04, 918,014.48 and 363,425.20

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Solution

The fourth proportional to 665,229.04, 918,014.48 and 363,425.20 is: 501,525.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,229.04 : 918,014.48 = 363,425.20 : x
  2. Step 2: Convert to fraction form
    665,229.04/918,014.48 = 363,425.20/x
  3. Step 3: Cross multiply
    665,229.04x = 918,014.48 × 363,425.20
  4. Step 4: Simplify right side
    665,229.04x = 333,629,595,996.90
  5. Step 5: Solve for x
    x = 333,629,595,996.90/665,229.04
  6. Step 6: Final answer
    x = 501,525.90

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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.