Home / 1,218,020.66-1,680,808.54-694,751.94

Finding the Fourth Proportional to 1,218,020.66, 1,680,808.54 and 694,751.94

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Solution

The fourth proportional to 1,218,020.66, 1,680,808.54 and 694,751.94 is: 958,723.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,020.66 : 1,680,808.54 = 694,751.94 : x
  2. Step 2: Convert to fraction form
    1,218,020.66/1,680,808.54 = 694,751.94/x
  3. Step 3: Cross multiply
    1,218,020.66x = 1,680,808.54 × 694,751.94
  4. Step 4: Simplify right side
    1,218,020.66x = 1,167,744,993,933.57
  5. Step 5: Solve for x
    x = 1,167,744,993,933.57/1,218,020.66
  6. Step 6: Final answer
    x = 958,723.47

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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.