Home / 1,189,314.56-1,641,254.94-645,450.22

Finding the Fourth Proportional to 1,189,314.56, 1,641,254.94 and 645,450.22

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Solution

The fourth proportional to 1,189,314.56, 1,641,254.94 and 645,450.22 is: 890,721.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,314.56 : 1,641,254.94 = 645,450.22 : x
  2. Step 2: Convert to fraction form
    1,189,314.56/1,641,254.94 = 645,450.22/x
  3. Step 3: Cross multiply
    1,189,314.56x = 1,641,254.94 × 645,450.22
  4. Step 4: Simplify right side
    1,189,314.56x = 1,059,348,364,150.66
  5. Step 5: Solve for x
    x = 1,059,348,364,150.66/1,189,314.56
  6. Step 6: Final answer
    x = 890,721.76

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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.