Home / 1,377,154.94-1,900,521.64-765,333.48

Finding the Fourth Proportional to 1,377,154.94, 1,900,521.64 and 765,333.48

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Solution

The fourth proportional to 1,377,154.94, 1,900,521.64 and 765,333.48 is: 1,056,186.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,377,154.94 : 1,900,521.64 = 765,333.48 : x
  2. Step 2: Convert to fraction form
    1,377,154.94/1,900,521.64 = 765,333.48/x
  3. Step 3: Cross multiply
    1,377,154.94x = 1,900,521.64 × 765,333.48
  4. Step 4: Simplify right side
    1,377,154.94x = 1,454,532,840,556.51
  5. Step 5: Solve for x
    x = 1,454,532,840,556.51/1,377,154.94
  6. Step 6: Final answer
    x = 1,056,186.78

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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.