Home / 1,409,880.85-1,945,670.84-765,300.31

Finding the Fourth Proportional to 1,409,880.85, 1,945,670.84 and 765,300.31

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Solution

The fourth proportional to 1,409,880.85, 1,945,670.84 and 765,300.31 is: 1,056,133.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,880.85 : 1,945,670.84 = 765,300.31 : x
  2. Step 2: Convert to fraction form
    1,409,880.85/1,945,670.84 = 765,300.31/x
  3. Step 3: Cross multiply
    1,409,880.85x = 1,945,670.84 × 765,300.31
  4. Step 4: Simplify right side
    1,409,880.85x = 1,489,022,497,009.96
  5. Step 5: Solve for x
    x = 1,489,022,497,009.96/1,409,880.85
  6. Step 6: Final answer
    x = 1,056,133.57

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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.