Home / 1,218,709.44-1,681,772.76-674,802

Finding the Fourth Proportional to 1,218,709.44, 1,681,772.76 and 674,802

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Solution

The fourth proportional to 1,218,709.44, 1,681,772.76 and 674,802 is: 931,201.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,709.44 : 1,681,772.76 = 674,802 : x
  2. Step 2: Convert to fraction form
    1,218,709.44/1,681,772.76 = 674,802/x
  3. Step 3: Cross multiply
    1,218,709.44x = 1,681,772.76 × 674,802
  4. Step 4: Simplify right side
    1,218,709.44x = 1,134,863,621,993.52
  5. Step 5: Solve for x
    x = 1,134,863,621,993.52/1,218,709.44
  6. Step 6: Final answer
    x = 931,201.14

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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.