Home / 1,912,631.22-2,639,431.08-1,053,189.43

Finding the Fourth Proportional to 1,912,631.22, 2,639,431.08 and 1,053,189.43

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Solution

The fourth proportional to 1,912,631.22, 2,639,431.08 and 1,053,189.43 is: 1,453,401.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,912,631.22 : 2,639,431.08 = 1,053,189.43 : x
  2. Step 2: Convert to fraction form
    1,912,631.22/2,639,431.08 = 1,053,189.43/x
  3. Step 3: Cross multiply
    1,912,631.22x = 2,639,431.08 × 1,053,189.43
  4. Step 4: Simplify right side
    1,912,631.22x = 2,779,820,914,669.48
  5. Step 5: Solve for x
    x = 2,779,820,914,669.48/1,912,631.22
  6. Step 6: Final answer
    x = 1,453,401.41

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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.