Home / 1,346,438.20-1,858,075.66-765,661.56

Finding the Fourth Proportional to 1,346,438.20, 1,858,075.66 and 765,661.56

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Solution

The fourth proportional to 1,346,438.20, 1,858,075.66 and 765,661.56 is: 1,056,607.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,346,438.20 : 1,858,075.66 = 765,661.56 : x
  2. Step 2: Convert to fraction form
    1,346,438.20/1,858,075.66 = 765,661.56/x
  3. Step 3: Cross multiply
    1,346,438.20x = 1,858,075.66 × 765,661.56
  4. Step 4: Simplify right side
    1,346,438.20x = 1,422,657,095,314.94
  5. Step 5: Solve for x
    x = 1,422,657,095,314.94/1,346,438.20
  6. Step 6: Final answer
    x = 1,056,607.79

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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.