Home / 685,536.47-946,028.70-379,606.31

Finding the Fourth Proportional to 685,536.47, 946,028.70 and 379,606.31

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Solution

The fourth proportional to 685,536.47, 946,028.70 and 379,606.31 is: 523,850.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,536.47 : 946,028.70 = 379,606.31 : x
  2. Step 2: Convert to fraction form
    685,536.47/946,028.70 = 379,606.31/x
  3. Step 3: Cross multiply
    685,536.47x = 946,028.70 × 379,606.31
  4. Step 4: Simplify right side
    685,536.47x = 359,118,459,230.95
  5. Step 5: Solve for x
    x = 359,118,459,230.95/685,536.47
  6. Step 6: Final answer
    x = 523,850.27

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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.