Home / 724,536.45-1,086,989.31-325,328.28

Finding the Fourth Proportional to 724,536.45, 1,086,989.31 and 325,328.28

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Solution

The fourth proportional to 724,536.45, 1,086,989.31 and 325,328.28 is: 488,075.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,536.45 : 1,086,989.31 = 325,328.28 : x
  2. Step 2: Convert to fraction form
    724,536.45/1,086,989.31 = 325,328.28/x
  3. Step 3: Cross multiply
    724,536.45x = 1,086,989.31 × 325,328.28
  4. Step 4: Simplify right side
    724,536.45x = 353,628,362,600.69
  5. Step 5: Solve for x
    x = 353,628,362,600.69/724,536.45
  6. Step 6: Final answer
    x = 488,075.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.