Home / 1,189,497.26-1,641,507.86-645,633.16

Finding the Fourth Proportional to 1,189,497.26, 1,641,507.86 and 645,633.16

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Solution

The fourth proportional to 1,189,497.26, 1,641,507.86 and 645,633.16 is: 890,974.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,497.26 : 1,641,507.86 = 645,633.16 : x
  2. Step 2: Convert to fraction form
    1,189,497.26/1,641,507.86 = 645,633.16/x
  3. Step 3: Cross multiply
    1,189,497.26x = 1,641,507.86 × 645,633.16
  4. Step 4: Simplify right side
    1,189,497.26x = 1,059,811,904,326.95
  5. Step 5: Solve for x
    x = 1,059,811,904,326.95/1,189,497.26
  6. Step 6: Final answer
    x = 890,974.65

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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.