Home / 1,338,423.48-1,847,365.38-765,643.32

Finding the Fourth Proportional to 1,338,423.48, 1,847,365.38 and 765,643.32

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Solution

The fourth proportional to 1,338,423.48, 1,847,365.38 and 765,643.32 is: 1,056,782.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,423.48 : 1,847,365.38 = 765,643.32 : x
  2. Step 2: Convert to fraction form
    1,338,423.48/1,847,365.38 = 765,643.32/x
  3. Step 3: Cross multiply
    1,338,423.48x = 1,847,365.38 × 765,643.32
  4. Step 4: Simplify right side
    1,338,423.48x = 1,414,422,962,796.26
  5. Step 5: Solve for x
    x = 1,414,422,962,796.26/1,338,423.48
  6. Step 6: Final answer
    x = 1,056,782.84

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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.