Home / 872,190.60-1,203,583.50-509,647.56

Finding the Fourth Proportional to 872,190.60, 1,203,583.50 and 509,647.56

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Solution

The fourth proportional to 872,190.60, 1,203,583.50 and 509,647.56 is: 703,290.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,190.60 : 1,203,583.50 = 509,647.56 : x
  2. Step 2: Convert to fraction form
    872,190.60/1,203,583.50 = 509,647.56/x
  3. Step 3: Cross multiply
    872,190.60x = 1,203,583.50 × 509,647.56
  4. Step 4: Simplify right side
    872,190.60x = 613,403,394,031.26
  5. Step 5: Solve for x
    x = 613,403,394,031.26/872,190.60
  6. Step 6: Final answer
    x = 703,290.54

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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.