Home / 1,419,967.35-2,128,373.34-1,081,893.45

Finding the Fourth Proportional to 1,419,967.35, 2,128,373.34 and 1,081,893.45

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Solution

The fourth proportional to 1,419,967.35, 2,128,373.34 and 1,081,893.45 is: 1,621,638.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,967.35 : 2,128,373.34 = 1,081,893.45 : x
  2. Step 2: Convert to fraction form
    1,419,967.35/2,128,373.34 = 1,081,893.45/x
  3. Step 3: Cross multiply
    1,419,967.35x = 2,128,373.34 × 1,081,893.45
  4. Step 4: Simplify right side
    1,419,967.35x = 2,302,673,175,700.62
  5. Step 5: Solve for x
    x = 2,302,673,175,700.62/1,419,967.35
  6. Step 6: Final answer
    x = 1,621,638.11

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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.