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Finding the Fourth Proportional to 551,961.89, 827,942.84 and 172,885.77

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Solution

The fourth proportional to 551,961.89, 827,942.84 and 172,885.77 is: 259,328.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,961.89 : 827,942.84 = 172,885.77 : x
  2. Step 2: Convert to fraction form
    551,961.89/827,942.84 = 172,885.77/x
  3. Step 3: Cross multiply
    551,961.89x = 827,942.84 × 172,885.77
  4. Step 4: Simplify right side
    551,961.89x = 143,139,533,350.93
  5. Step 5: Solve for x
    x = 143,139,533,350.93/551,961.89
  6. Step 6: Final answer
    x = 259,328.65

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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.