Home / 1,211,682.88-1,672,054.14-667,817.02

Finding the Fourth Proportional to 1,211,682.88, 1,672,054.14 and 667,817.02

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Solution

The fourth proportional to 1,211,682.88, 1,672,054.14 and 667,817.02 is: 921,549.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,211,682.88 : 1,672,054.14 = 667,817.02 : x
  2. Step 2: Convert to fraction form
    1,211,682.88/1,672,054.14 = 667,817.02/x
  3. Step 3: Cross multiply
    1,211,682.88x = 1,672,054.14 × 667,817.02
  4. Step 4: Simplify right side
    1,211,682.88x = 1,116,626,213,053.46
  5. Step 5: Solve for x
    x = 1,116,626,213,053.46/1,211,682.88
  6. Step 6: Final answer
    x = 921,549.88

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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.