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Finding the Fourth Proportional to 1,213,369, 1,674,449.22 and 676,825

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Solution

The fourth proportional to 1,213,369, 1,674,449.22 and 676,825 is: 934,018.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,369 : 1,674,449.22 = 676,825 : x
  2. Step 2: Convert to fraction form
    1,213,369/1,674,449.22 = 676,825/x
  3. Step 3: Cross multiply
    1,213,369x = 1,674,449.22 × 676,825
  4. Step 4: Simplify right side
    1,213,369x = 1,133,309,093,326.50
  5. Step 5: Solve for x
    x = 1,133,309,093,326.50/1,213,369
  6. Step 6: Final answer
    x = 934,018.50

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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.