Home / 1,409,669.42-1,945,344.63-765,089.61

Finding the Fourth Proportional to 1,409,669.42, 1,945,344.63 and 765,089.61

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Solution

The fourth proportional to 1,409,669.42, 1,945,344.63 and 765,089.61 is: 1,055,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,669.42 : 1,945,344.63 = 765,089.61 : x
  2. Step 2: Convert to fraction form
    1,409,669.42/1,945,344.63 = 765,089.61/x
  3. Step 3: Cross multiply
    1,409,669.42x = 1,945,344.63 × 765,089.61
  4. Step 4: Simplify right side
    1,409,669.42x = 1,488,362,964,282.29
  5. Step 5: Solve for x
    x = 1,488,362,964,282.29/1,409,669.42
  6. Step 6: Final answer
    x = 1,055,824.11

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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.