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Finding the Fourth Proportional to 504,352.50, 696,006.45 and 278,002.86

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Solution

The fourth proportional to 504,352.50, 696,006.45 and 278,002.86 is: 383,643.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,352.50 : 696,006.45 = 278,002.86 : x
  2. Step 2: Convert to fraction form
    504,352.50/696,006.45 = 278,002.86/x
  3. Step 3: Cross multiply
    504,352.50x = 696,006.45 × 278,002.86
  4. Step 4: Simplify right side
    504,352.50x = 193,491,783,678.45
  5. Step 5: Solve for x
    x = 193,491,783,678.45/504,352.50
  6. Step 6: Final answer
    x = 383,643.95

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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.