Home / 1,411,857.80-1,948,438.44-800,129.60

Finding the Fourth Proportional to 1,411,857.80, 1,948,438.44 and 800,129.60

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Solution

The fourth proportional to 1,411,857.80, 1,948,438.44 and 800,129.60 is: 1,104,221.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,411,857.80 : 1,948,438.44 = 800,129.60 : x
  2. Step 2: Convert to fraction form
    1,411,857.80/1,948,438.44 = 800,129.60/x
  3. Step 3: Cross multiply
    1,411,857.80x = 1,948,438.44 × 800,129.60
  4. Step 4: Simplify right side
    1,411,857.80x = 1,559,003,269,621.82
  5. Step 5: Solve for x
    x = 1,559,003,269,621.82/1,411,857.80
  6. Step 6: Final answer
    x = 1,104,221.17

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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.