Home / 1,218,104.72-1,680,941.64-674,241.56

Finding the Fourth Proportional to 1,218,104.72, 1,680,941.64 and 674,241.56

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Solution

The fourth proportional to 1,218,104.72, 1,680,941.64 and 674,241.56 is: 930,429.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,104.72 : 1,680,941.64 = 674,241.56 : x
  2. Step 2: Convert to fraction form
    1,218,104.72/1,680,941.64 = 674,241.56/x
  3. Step 3: Cross multiply
    1,218,104.72x = 1,680,941.64 × 674,241.56
  4. Step 4: Simplify right side
    1,218,104.72x = 1,133,360,713,622.56
  5. Step 5: Solve for x
    x = 1,133,360,713,622.56/1,218,104.72
  6. Step 6: Final answer
    x = 930,429.62

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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.