Home / 1,409,684.40-1,945,315.08-765,091.68

Finding the Fourth Proportional to 1,409,684.40, 1,945,315.08 and 765,091.68

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Solution

The fourth proportional to 1,409,684.40, 1,945,315.08 and 765,091.68 is: 1,055,799.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,684.40 : 1,945,315.08 = 765,091.68 : x
  2. Step 2: Convert to fraction form
    1,409,684.40/1,945,315.08 = 765,091.68/x
  3. Step 3: Cross multiply
    1,409,684.40x = 1,945,315.08 × 765,091.68
  4. Step 4: Simplify right side
    1,409,684.40x = 1,488,344,382,686.53
  5. Step 5: Solve for x
    x = 1,488,344,382,686.53/1,409,684.40
  6. Step 6: Final answer
    x = 1,055,799.71

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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.