Home / 1,213,031.45-1,673,978.69-669,201.09

Finding the Fourth Proportional to 1,213,031.45, 1,673,978.69 and 669,201.09

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Solution

The fourth proportional to 1,213,031.45, 1,673,978.69 and 669,201.09 is: 923,494.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,031.45 : 1,673,978.69 = 669,201.09 : x
  2. Step 2: Convert to fraction form
    1,213,031.45/1,673,978.69 = 669,201.09/x
  3. Step 3: Cross multiply
    1,213,031.45x = 1,673,978.69 × 669,201.09
  4. Step 4: Simplify right side
    1,213,031.45x = 1,120,228,360,638.77
  5. Step 5: Solve for x
    x = 1,120,228,360,638.77/1,213,031.45
  6. Step 6: Final answer
    x = 923,494.91

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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.