Home / 1,218,903.12-1,682,917.56-760,196.88

Finding the Fourth Proportional to 1,218,903.12, 1,682,917.56 and 760,196.88

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Solution

The fourth proportional to 1,218,903.12, 1,682,917.56 and 760,196.88 is: 1,049,590.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,903.12 : 1,682,917.56 = 760,196.88 : x
  2. Step 2: Convert to fraction form
    1,218,903.12/1,682,917.56 = 760,196.88/x
  3. Step 3: Cross multiply
    1,218,903.12x = 1,682,917.56 × 760,196.88
  4. Step 4: Simplify right side
    1,218,903.12x = 1,279,348,678,409.21
  5. Step 5: Solve for x
    x = 1,279,348,678,409.21/1,218,903.12
  6. Step 6: Final answer
    x = 1,049,590.13

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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.