Home / 939,604.34-1,296,653.99-509,884.47

Finding the Fourth Proportional to 939,604.34, 1,296,653.99 and 509,884.47

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Solution

The fourth proportional to 939,604.34, 1,296,653.99 and 509,884.47 is: 703,640.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,604.34 : 1,296,653.99 = 509,884.47 : x
  2. Step 2: Convert to fraction form
    939,604.34/1,296,653.99 = 509,884.47/x
  3. Step 3: Cross multiply
    939,604.34x = 1,296,653.99 × 509,884.47
  4. Step 4: Simplify right side
    939,604.34x = 661,143,732,464.54
  5. Step 5: Solve for x
    x = 661,143,732,464.54/939,604.34
  6. Step 6: Final answer
    x = 703,640.57

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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.