Home / 684,421.25-944,536.75-394,075.94

Finding the Fourth Proportional to 684,421.25, 944,536.75 and 394,075.94

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Solution

The fourth proportional to 684,421.25, 944,536.75 and 394,075.94 is: 543,845.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,421.25 : 944,536.75 = 394,075.94 : x
  2. Step 2: Convert to fraction form
    684,421.25/944,536.75 = 394,075.94/x
  3. Step 3: Cross multiply
    684,421.25x = 944,536.75 × 394,075.94
  4. Step 4: Simplify right side
    684,421.25x = 372,219,201,912.92
  5. Step 5: Solve for x
    x = 372,219,201,912.92/684,421.25
  6. Step 6: Final answer
    x = 543,845.19

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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.