Home / 1,189,314.69-1,641,255.13-645,450.34

Finding the Fourth Proportional to 1,189,314.69, 1,641,255.13 and 645,450.34

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Solution

The fourth proportional to 1,189,314.69, 1,641,255.13 and 645,450.34 is: 890,721.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,314.69 : 1,641,255.13 = 645,450.34 : x
  2. Step 2: Convert to fraction form
    1,189,314.69/1,641,255.13 = 645,450.34/x
  3. Step 3: Cross multiply
    1,189,314.69x = 1,641,255.13 × 645,450.34
  4. Step 4: Simplify right side
    1,189,314.69x = 1,059,348,681,685.24
  5. Step 5: Solve for x
    x = 1,059,348,681,685.24/1,189,314.69
  6. Step 6: Final answer
    x = 890,721.93

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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.