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Finding the Fourth Proportional to 504,908.10, 696,773.10 and 278,553.60

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Solution

The fourth proportional to 504,908.10, 696,773.10 and 278,553.60 is: 384,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,908.10 : 696,773.10 = 278,553.60 : x
  2. Step 2: Convert to fraction form
    504,908.10/696,773.10 = 278,553.60/x
  3. Step 3: Cross multiply
    504,908.10x = 696,773.10 × 278,553.60
  4. Step 4: Simplify right side
    504,908.10x = 194,088,655,388.16
  5. Step 5: Solve for x
    x = 194,088,655,388.16/504,908.10
  6. Step 6: Final answer
    x = 384,403.92

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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.