Home / 1,242,998.40-1,855,387.44-1,151,709.24

Finding the Fourth Proportional to 1,242,998.40, 1,855,387.44 and 1,151,709.24

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Solution

The fourth proportional to 1,242,998.40, 1,855,387.44 and 1,151,709.24 is: 1,719,122.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,998.40 : 1,855,387.44 = 1,151,709.24 : x
  2. Step 2: Convert to fraction form
    1,242,998.40/1,855,387.44 = 1,151,709.24/x
  3. Step 3: Cross multiply
    1,242,998.40x = 1,855,387.44 × 1,151,709.24
  4. Step 4: Simplify right side
    1,242,998.40x = 2,136,866,858,427.95
  5. Step 5: Solve for x
    x = 2,136,866,858,427.95/1,242,998.40
  6. Step 6: Final answer
    x = 1,719,122.77

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.