Home / 2,135,804.75-2,946,677.68-1,217,371.40

Finding the Fourth Proportional to 2,135,804.75, 2,946,677.68 and 1,217,371.40

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Solution

The fourth proportional to 2,135,804.75, 2,946,677.68 and 1,217,371.40 is: 1,679,554.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,804.75 : 2,946,677.68 = 1,217,371.40 : x
  2. Step 2: Convert to fraction form
    2,135,804.75/2,946,677.68 = 1,217,371.40/x
  3. Step 3: Cross multiply
    2,135,804.75x = 2,946,677.68 × 1,217,371.40
  4. Step 4: Simplify right side
    2,135,804.75x = 3,587,201,132,650.35
  5. Step 5: Solve for x
    x = 3,587,201,132,650.35/2,135,804.75
  6. Step 6: Final answer
    x = 1,679,554.81

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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.