Home / 1,218,814.07-1,681,921.28-674,972.51

Finding the Fourth Proportional to 1,218,814.07, 1,681,921.28 and 674,972.51

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Solution

The fourth proportional to 1,218,814.07, 1,681,921.28 and 674,972.51 is: 931,438.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,814.07 : 1,681,921.28 = 674,972.51 : x
  2. Step 2: Convert to fraction form
    1,218,814.07/1,681,921.28 = 674,972.51/x
  3. Step 3: Cross multiply
    1,218,814.07x = 1,681,921.28 × 674,972.51
  4. Step 4: Simplify right side
    1,218,814.07x = 1,135,250,624,609.15
  5. Step 5: Solve for x
    x = 1,135,250,624,609.15/1,218,814.07
  6. Step 6: Final answer
    x = 931,438.73

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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.