Home / 1,217,273.88-1,679,887.35-673,400.28

Finding the Fourth Proportional to 1,217,273.88, 1,679,887.35 and 673,400.28

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Solution

The fourth proportional to 1,217,273.88, 1,679,887.35 and 673,400.28 is: 929,319.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,273.88 : 1,679,887.35 = 673,400.28 : x
  2. Step 2: Convert to fraction form
    1,217,273.88/1,679,887.35 = 673,400.28/x
  3. Step 3: Cross multiply
    1,217,273.88x = 1,679,887.35 × 673,400.28
  4. Step 4: Simplify right side
    1,217,273.88x = 1,131,236,611,858.46
  5. Step 5: Solve for x
    x = 1,131,236,611,858.46/1,217,273.88
  6. Step 6: Final answer
    x = 929,319.71

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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.