Home / 1,218,090.35-1,680,921.82-674,227.19

Finding the Fourth Proportional to 1,218,090.35, 1,680,921.82 and 674,227.19

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Solution

The fourth proportional to 1,218,090.35, 1,680,921.82 and 674,227.19 is: 930,409.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,090.35 : 1,680,921.82 = 674,227.19 : x
  2. Step 2: Convert to fraction form
    1,218,090.35/1,680,921.82 = 674,227.19/x
  3. Step 3: Cross multiply
    1,218,090.35x = 1,680,921.82 × 674,227.19
  4. Step 4: Simplify right side
    1,218,090.35x = 1,133,323,200,353.37
  5. Step 5: Solve for x
    x = 1,133,323,200,353.37/1,218,090.35
  6. Step 6: Final answer
    x = 930,409.80

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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.