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Finding the Fourth Proportional to 485,050.60, 727,575.90 and 415,066.60

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Solution

The fourth proportional to 485,050.60, 727,575.90 and 415,066.60 is: 622,599.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,050.60 : 727,575.90 = 415,066.60 : x
  2. Step 2: Convert to fraction form
    485,050.60/727,575.90 = 415,066.60/x
  3. Step 3: Cross multiply
    485,050.60x = 727,575.90 × 415,066.60
  4. Step 4: Simplify right side
    485,050.60x = 301,992,455,054.94
  5. Step 5: Solve for x
    x = 301,992,455,054.94/485,050.60
  6. Step 6: Final answer
    x = 622,599.90

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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.