Home / 1,370,987.60-1,892,193.18-798,365.40

Finding the Fourth Proportional to 1,370,987.60, 1,892,193.18 and 798,365.40

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Solution

The fourth proportional to 1,370,987.60, 1,892,193.18 and 798,365.40 is: 1,101,878.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,987.60 : 1,892,193.18 = 798,365.40 : x
  2. Step 2: Convert to fraction form
    1,370,987.60/1,892,193.18 = 798,365.40/x
  3. Step 3: Cross multiply
    1,370,987.60x = 1,892,193.18 × 798,365.40
  4. Step 4: Simplify right side
    1,370,987.60x = 1,510,661,565,027.97
  5. Step 5: Solve for x
    x = 1,510,661,565,027.97/1,370,987.60
  6. Step 6: Final answer
    x = 1,101,878.36

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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.