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Finding the Fourth Proportional to 499,863, 689,810.94 and 273,508.50

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Solution

The fourth proportional to 499,863, 689,810.94 and 273,508.50 is: 377,441.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,863 : 689,810.94 = 273,508.50 : x
  2. Step 2: Convert to fraction form
    499,863/689,810.94 = 273,508.50/x
  3. Step 3: Cross multiply
    499,863x = 689,810.94 × 273,508.50
  4. Step 4: Simplify right side
    499,863x = 188,669,155,482.99
  5. Step 5: Solve for x
    x = 188,669,155,482.99/499,863
  6. Step 6: Final answer
    x = 377,441.73

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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.