Home / 939,841.47-1,296,982.38-510,121.55

Finding the Fourth Proportional to 939,841.47, 1,296,982.38 and 510,121.55

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Solution

The fourth proportional to 939,841.47, 1,296,982.38 and 510,121.55 is: 703,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,841.47 : 1,296,982.38 = 510,121.55 : x
  2. Step 2: Convert to fraction form
    939,841.47/1,296,982.38 = 510,121.55/x
  3. Step 3: Cross multiply
    939,841.47x = 1,296,982.38 × 510,121.55
  4. Step 4: Simplify right side
    939,841.47x = 661,618,655,523.38
  5. Step 5: Solve for x
    x = 661,618,655,523.38/939,841.47
  6. Step 6: Final answer
    x = 703,968.36

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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.