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Finding the Fourth Proportional to 1,352,998.02, 1,865,849.27 and 809,047.38

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Solution

The fourth proportional to 1,352,998.02, 1,865,849.27 and 809,047.38 is: 1,115,715.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,352,998.02 : 1,865,849.27 = 809,047.38 : x
  2. Step 2: Convert to fraction form
    1,352,998.02/1,865,849.27 = 809,047.38/x
  3. Step 3: Cross multiply
    1,352,998.02x = 1,865,849.27 × 809,047.38
  4. Step 4: Simplify right side
    1,352,998.02x = 1,509,560,459,323.18
  5. Step 5: Solve for x
    x = 1,509,560,459,323.18/1,352,998.02
  6. Step 6: Final answer
    x = 1,115,715.20

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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.