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Finding the Fourth Proportional to 807,628, 1,114,549.68 and 449,955.04

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Solution

The fourth proportional to 807,628, 1,114,549.68 and 449,955.04 is: 620,950.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,628 : 1,114,549.68 = 449,955.04 : x
  2. Step 2: Convert to fraction form
    807,628/1,114,549.68 = 449,955.04/x
  3. Step 3: Cross multiply
    807,628x = 1,114,549.68 × 449,955.04
  4. Step 4: Simplify right side
    807,628x = 501,497,245,846.39
  5. Step 5: Solve for x
    x = 501,497,245,846.39/807,628
  6. Step 6: Final answer
    x = 620,950.79

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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.