Home / 1,138,085.73-1,570,539.60-628,835.49

Finding the Fourth Proportional to 1,138,085.73, 1,570,539.60 and 628,835.49

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Solution

The fourth proportional to 1,138,085.73, 1,570,539.60 and 628,835.49 is: 867,782.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,085.73 : 1,570,539.60 = 628,835.49 : x
  2. Step 2: Convert to fraction form
    1,138,085.73/1,570,539.60 = 628,835.49/x
  3. Step 3: Cross multiply
    1,138,085.73x = 1,570,539.60 × 628,835.49
  4. Step 4: Simplify right side
    1,138,085.73x = 987,611,038,930.40
  5. Step 5: Solve for x
    x = 987,611,038,930.40/1,138,085.73
  6. Step 6: Final answer
    x = 867,782.64

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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.