Home / 1,217,679.96-1,680,869.34-1,090,133.88

Finding the Fourth Proportional to 1,217,679.96, 1,680,869.34 and 1,090,133.88

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Solution

The fourth proportional to 1,217,679.96, 1,680,869.34 and 1,090,133.88 is: 1,504,806.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,679.96 : 1,680,869.34 = 1,090,133.88 : x
  2. Step 2: Convert to fraction form
    1,217,679.96/1,680,869.34 = 1,090,133.88/x
  3. Step 3: Cross multiply
    1,217,679.96x = 1,680,869.34 × 1,090,133.88
  4. Step 4: Simplify right side
    1,217,679.96x = 1,832,372,615,387.24
  5. Step 5: Solve for x
    x = 1,832,372,615,387.24/1,217,679.96
  6. Step 6: Final answer
    x = 1,504,806.42

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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.