Home / 1,377,605.42-1,900,964.97-765,685.52

Finding the Fourth Proportional to 1,377,605.42, 1,900,964.97 and 765,685.52

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Solution

The fourth proportional to 1,377,605.42, 1,900,964.97 and 765,685.52 is: 1,056,573.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,605.42 : 1,900,964.97 = 765,685.52 : x
  2. Step 2: Convert to fraction form
    1,377,605.42/1,900,964.97 = 765,685.52/x
  3. Step 3: Cross multiply
    1,377,605.42x = 1,900,964.97 × 765,685.52
  4. Step 4: Simplify right side
    1,377,605.42x = 1,455,541,351,556.23
  5. Step 5: Solve for x
    x = 1,455,541,351,556.23/1,377,605.42
  6. Step 6: Final answer
    x = 1,056,573.48

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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.