Home / 1,409,649.25-1,945,317.86-765,069.45

Finding the Fourth Proportional to 1,409,649.25, 1,945,317.86 and 765,069.45

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Solution

The fourth proportional to 1,409,649.25, 1,945,317.86 and 765,069.45 is: 1,055,796.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,649.25 : 1,945,317.86 = 765,069.45 : x
  2. Step 2: Convert to fraction form
    1,409,649.25/1,945,317.86 = 765,069.45/x
  3. Step 3: Cross multiply
    1,409,649.25x = 1,945,317.86 × 765,069.45
  4. Step 4: Simplify right side
    1,409,649.25x = 1,488,303,265,225.38
  5. Step 5: Solve for x
    x = 1,488,303,265,225.38/1,409,649.25
  6. Step 6: Final answer
    x = 1,055,796.87

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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.