Home / 1,138,108.88-1,570,653.24-628,800.32

Finding the Fourth Proportional to 1,138,108.88, 1,570,653.24 and 628,800.32

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Solution

The fourth proportional to 1,138,108.88, 1,570,653.24 and 628,800.32 is: 867,779.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,108.88 : 1,570,653.24 = 628,800.32 : x
  2. Step 2: Convert to fraction form
    1,138,108.88/1,570,653.24 = 628,800.32/x
  3. Step 3: Cross multiply
    1,138,108.88x = 1,570,653.24 × 628,800.32
  4. Step 4: Simplify right side
    1,138,108.88x = 987,627,259,921.04
  5. Step 5: Solve for x
    x = 987,627,259,921.04/1,138,108.88
  6. Step 6: Final answer
    x = 867,779.24

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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.