Home / 1,109,139.90-1,663,709.85-880,817.10

Finding the Fourth Proportional to 1,109,139.90, 1,663,709.85 and 880,817.10

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Solution

The fourth proportional to 1,109,139.90, 1,663,709.85 and 880,817.10 is: 1,321,225.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,109,139.90 : 1,663,709.85 = 880,817.10 : x
  2. Step 2: Convert to fraction form
    1,109,139.90/1,663,709.85 = 880,817.10/x
  3. Step 3: Cross multiply
    1,109,139.90x = 1,663,709.85 × 880,817.10
  4. Step 4: Simplify right side
    1,109,139.90x = 1,465,424,085,318.44
  5. Step 5: Solve for x
    x = 1,465,424,085,318.44/1,109,139.90
  6. Step 6: Final answer
    x = 1,321,225.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.