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Finding the Fourth Proportional to 1,352,999.02, 1,865,850.64 and 809,048.38

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Solution

The fourth proportional to 1,352,999.02, 1,865,850.64 and 809,048.38 is: 1,115,716.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,999.02 : 1,865,850.64 = 809,048.38 : x
  2. Step 2: Convert to fraction form
    1,352,999.02/1,865,850.64 = 809,048.38/x
  3. Step 3: Cross multiply
    1,352,999.02x = 1,865,850.64 × 809,048.38
  4. Step 4: Simplify right side
    1,352,999.02x = 1,509,563,437,613.96
  5. Step 5: Solve for x
    x = 1,509,563,437,613.96/1,352,999.02
  6. Step 6: Final answer
    x = 1,115,716.58

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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.