Home / 1,115,905.07-1,537,215.68-809,079.90

Finding the Fourth Proportional to 1,115,905.07, 1,537,215.68 and 809,079.90

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Solution

The fourth proportional to 1,115,905.07, 1,537,215.68 and 809,079.90 is: 1,114,548.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,905.07 : 1,537,215.68 = 809,079.90 : x
  2. Step 2: Convert to fraction form
    1,115,905.07/1,537,215.68 = 809,079.90/x
  3. Step 3: Cross multiply
    1,115,905.07x = 1,537,215.68 × 809,079.90
  4. Step 4: Simplify right side
    1,115,905.07x = 1,243,730,311,282.27
  5. Step 5: Solve for x
    x = 1,243,730,311,282.27/1,115,905.07
  6. Step 6: Final answer
    x = 1,114,548.49

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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.