Home / 1,921,770.32-2,651,916.66-1,105,842.31

Finding the Fourth Proportional to 1,921,770.32, 2,651,916.66 and 1,105,842.31

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Solution

The fourth proportional to 1,921,770.32, 2,651,916.66 and 1,105,842.31 is: 1,525,989.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,921,770.32 : 2,651,916.66 = 1,105,842.31 : x
  2. Step 2: Convert to fraction form
    1,921,770.32/2,651,916.66 = 1,105,842.31/x
  3. Step 3: Cross multiply
    1,921,770.32x = 2,651,916.66 × 1,105,842.31
  4. Step 4: Simplify right side
    1,921,770.32x = 2,932,601,640,665.55
  5. Step 5: Solve for x
    x = 2,932,601,640,665.55/1,921,770.32
  6. Step 6: Final answer
    x = 1,525,989.66

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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.