Home / 1,916,021.80-2,874,261.84-778,540.96

Finding the Fourth Proportional to 1,916,021.80, 2,874,261.84 and 778,540.96

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Solution

The fourth proportional to 1,916,021.80, 2,874,261.84 and 778,540.96 is: 1,167,904.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,916,021.80 : 2,874,261.84 = 778,540.96 : x
  2. Step 2: Convert to fraction form
    1,916,021.80/2,874,261.84 = 778,540.96/x
  3. Step 3: Cross multiply
    1,916,021.80x = 2,874,261.84 × 778,540.96
  4. Step 4: Simplify right side
    1,916,021.80x = 2,237,730,572,204.97
  5. Step 5: Solve for x
    x = 2,237,730,572,204.97/1,916,021.80
  6. Step 6: Final answer
    x = 1,167,904.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.