Home / 1,218,687.94-1,681,768.77-674,812.06

Finding the Fourth Proportional to 1,218,687.94, 1,681,768.77 and 674,812.06

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Solution

The fourth proportional to 1,218,687.94, 1,681,768.77 and 674,812.06 is: 931,229.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,687.94 : 1,681,768.77 = 674,812.06 : x
  2. Step 2: Convert to fraction form
    1,218,687.94/1,681,768.77 = 674,812.06/x
  3. Step 3: Cross multiply
    1,218,687.94x = 1,681,768.77 × 674,812.06
  4. Step 4: Simplify right side
    1,218,687.94x = 1,134,877,848,127.37
  5. Step 5: Solve for x
    x = 1,134,877,848,127.37/1,218,687.94
  6. Step 6: Final answer
    x = 931,229.24

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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.