Home / 1,383,587.40-1,909,268.37-802,765.55

Finding the Fourth Proportional to 1,383,587.40, 1,909,268.37 and 802,765.55

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Solution

The fourth proportional to 1,383,587.40, 1,909,268.37 and 802,765.55 is: 1,107,768.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,383,587.40 : 1,909,268.37 = 802,765.55 : x
  2. Step 2: Convert to fraction form
    1,383,587.40/1,909,268.37 = 802,765.55/x
  3. Step 3: Cross multiply
    1,383,587.40x = 1,909,268.37 × 802,765.55
  4. Step 4: Simplify right side
    1,383,587.40x = 1,532,694,863,594.31
  5. Step 5: Solve for x
    x = 1,532,694,863,594.31/1,383,587.40
  6. Step 6: Final answer
    x = 1,107,768.73

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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.