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Finding the Fourth Proportional to 504,353.50, 696,007.83 and 278,003.86

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Solution

The fourth proportional to 504,353.50, 696,007.83 and 278,003.86 is: 383,645.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,353.50 : 696,007.83 = 278,003.86 : x
  2. Step 2: Convert to fraction form
    504,353.50/696,007.83 = 278,003.86/x
  3. Step 3: Cross multiply
    504,353.50x = 696,007.83 × 278,003.86
  4. Step 4: Simplify right side
    504,353.50x = 193,492,863,330.22
  5. Step 5: Solve for x
    x = 193,492,863,330.22/504,353.50
  6. Step 6: Final answer
    x = 383,645.33

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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.