Home / 2,215,989.63-3,059,488.89-1,390,195.35

Finding the Fourth Proportional to 2,215,989.63, 3,059,488.89 and 1,390,195.35

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Solution

The fourth proportional to 2,215,989.63, 3,059,488.89 and 1,390,195.35 is: 1,919,362.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,215,989.63 : 3,059,488.89 = 1,390,195.35 : x
  2. Step 2: Convert to fraction form
    2,215,989.63/3,059,488.89 = 1,390,195.35/x
  3. Step 3: Cross multiply
    2,215,989.63x = 3,059,488.89 × 1,390,195.35
  4. Step 4: Simplify right side
    2,215,989.63x = 4,253,287,228,254.66
  5. Step 5: Solve for x
    x = 4,253,287,228,254.66/2,215,989.63
  6. Step 6: Final answer
    x = 1,919,362.42

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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.