Home / 1,277,108.06-1,914,368.52-828,113.72

Finding the Fourth Proportional to 1,277,108.06, 1,914,368.52 and 828,113.72

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Solution

The fourth proportional to 1,277,108.06, 1,914,368.52 and 828,113.72 is: 1,241,331.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,108.06 : 1,914,368.52 = 828,113.72 : x
  2. Step 2: Convert to fraction form
    1,277,108.06/1,914,368.52 = 828,113.72/x
  3. Step 3: Cross multiply
    1,277,108.06x = 1,914,368.52 × 828,113.72
  4. Step 4: Simplify right side
    1,277,108.06x = 1,585,314,836,548.09
  5. Step 5: Solve for x
    x = 1,585,314,836,548.09/1,277,108.06
  6. Step 6: Final answer
    x = 1,241,331.79

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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.