Home / 1,325,289.29-1,828,851.21-809,905.42

Finding the Fourth Proportional to 1,325,289.29, 1,828,851.21 and 809,905.42

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Solution

The fourth proportional to 1,325,289.29, 1,828,851.21 and 809,905.42 is: 1,117,640.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,289.29 : 1,828,851.21 = 809,905.42 : x
  2. Step 2: Convert to fraction form
    1,325,289.29/1,828,851.21 = 809,905.42/x
  3. Step 3: Cross multiply
    1,325,289.29x = 1,828,851.21 × 809,905.42
  4. Step 4: Simplify right side
    1,325,289.29x = 1,481,196,509,638.62
  5. Step 5: Solve for x
    x = 1,481,196,509,638.62/1,325,289.29
  6. Step 6: Final answer
    x = 1,117,640.15

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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.