Home / 1,219,581.09-1,829,355.03-378,132.84

Finding the Fourth Proportional to 1,219,581.09, 1,829,355.03 and 378,132.84

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Solution

The fourth proportional to 1,219,581.09, 1,829,355.03 and 378,132.84 is: 567,194.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,581.09 : 1,829,355.03 = 378,132.84 : x
  2. Step 2: Convert to fraction form
    1,219,581.09/1,829,355.03 = 378,132.84/x
  3. Step 3: Cross multiply
    1,219,581.09x = 1,829,355.03 × 378,132.84
  4. Step 4: Simplify right side
    1,219,581.09x = 691,739,212,862.19
  5. Step 5: Solve for x
    x = 691,739,212,862.19/1,219,581.09
  6. Step 6: Final answer
    x = 567,194.11

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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.