Home / 1,620,744.39-2,431,536.92-861,961.91

Finding the Fourth Proportional to 1,620,744.39, 2,431,536.92 and 861,961.91

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Solution

The fourth proportional to 1,620,744.39, 2,431,536.92 and 861,961.91 is: 1,293,166.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,744.39 : 2,431,536.92 = 861,961.91 : x
  2. Step 2: Convert to fraction form
    1,620,744.39/2,431,536.92 = 861,961.91/x
  3. Step 3: Cross multiply
    1,620,744.39x = 2,431,536.92 × 861,961.91
  4. Step 4: Simplify right side
    1,620,744.39x = 2,095,892,191,331.22
  5. Step 5: Solve for x
    x = 2,095,892,191,331.22/1,620,744.39
  6. Step 6: Final answer
    x = 1,293,166.40

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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.