Home / 1,009,937.70-1,394,219.07-628,087.50

Finding the Fourth Proportional to 1,009,937.70, 1,394,219.07 and 628,087.50

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Solution

The fourth proportional to 1,009,937.70, 1,394,219.07 and 628,087.50 is: 867,074.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,009,937.70 : 1,394,219.07 = 628,087.50 : x
  2. Step 2: Convert to fraction form
    1,009,937.70/1,394,219.07 = 628,087.50/x
  3. Step 3: Cross multiply
    1,009,937.70x = 1,394,219.07 × 628,087.50
  4. Step 4: Simplify right side
    1,009,937.70x = 875,691,570,128.63
  5. Step 5: Solve for x
    x = 875,691,570,128.63/1,009,937.70
  6. Step 6: Final answer
    x = 867,074.84

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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.