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Finding the Fourth Proportional to 611,700.44, 917,045.50 and 269,900.53

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Solution

The fourth proportional to 611,700.44, 917,045.50 and 269,900.53 is: 404,627.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,700.44 : 917,045.50 = 269,900.53 : x
  2. Step 2: Convert to fraction form
    611,700.44/917,045.50 = 269,900.53/x
  3. Step 3: Cross multiply
    611,700.44x = 917,045.50 × 269,900.53
  4. Step 4: Simplify right side
    611,700.44x = 247,511,066,484.12
  5. Step 5: Solve for x
    x = 247,511,066,484.12/611,700.44
  6. Step 6: Final answer
    x = 404,627.90

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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.