Home / 1,217,669.96-1,680,855.54-1,090,123.88

Finding the Fourth Proportional to 1,217,669.96, 1,680,855.54 and 1,090,123.88

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Solution

The fourth proportional to 1,217,669.96, 1,680,855.54 and 1,090,123.88 is: 1,504,792.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,669.96 : 1,680,855.54 = 1,090,123.88 : x
  2. Step 2: Convert to fraction form
    1,217,669.96/1,680,855.54 = 1,090,123.88/x
  3. Step 3: Cross multiply
    1,217,669.96x = 1,680,855.54 × 1,090,123.88
  4. Step 4: Simplify right side
    1,217,669.96x = 1,832,340,762,984.30
  5. Step 5: Solve for x
    x = 1,832,340,762,984.30/1,217,669.96
  6. Step 6: Final answer
    x = 1,504,792.61

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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.