Home / 1,213,145.98-1,674,130.68-669,286.47

Finding the Fourth Proportional to 1,213,145.98, 1,674,130.68 and 669,286.47

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Solution

The fourth proportional to 1,213,145.98, 1,674,130.68 and 669,286.47 is: 923,609.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,213,145.98 : 1,674,130.68 = 669,286.47 : x
  2. Step 2: Convert to fraction form
    1,213,145.98/1,674,130.68 = 669,286.47/x
  3. Step 3: Cross multiply
    1,213,145.98x = 1,674,130.68 × 669,286.47
  4. Step 4: Simplify right side
    1,213,145.98x = 1,120,473,013,135.90
  5. Step 5: Solve for x
    x = 1,120,473,013,135.90/1,213,145.98
  6. Step 6: Final answer
    x = 923,609.39

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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.