Home / 2,135,304.78-2,946,590.92-1,217,405.58

Finding the Fourth Proportional to 2,135,304.78, 2,946,590.92 and 1,217,405.58

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Solution

The fourth proportional to 2,135,304.78, 2,946,590.92 and 1,217,405.58 is: 1,679,945.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,135,304.78 : 2,946,590.92 = 1,217,405.58 : x
  2. Step 2: Convert to fraction form
    2,135,304.78/2,946,590.92 = 1,217,405.58/x
  3. Step 3: Cross multiply
    2,135,304.78x = 2,946,590.92 × 1,217,405.58
  4. Step 4: Simplify right side
    2,135,304.78x = 3,587,196,227,985.33
  5. Step 5: Solve for x
    x = 3,587,196,227,985.33/2,135,304.78
  6. Step 6: Final answer
    x = 1,679,945.77

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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.