Home / 1,421,106.64-1,961,126.60-785,202.64

Finding the Fourth Proportional to 1,421,106.64, 1,961,126.60 and 785,202.64

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Solution

The fourth proportional to 1,421,106.64, 1,961,126.60 and 785,202.64 is: 1,083,579.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,106.64 : 1,961,126.60 = 785,202.64 : x
  2. Step 2: Convert to fraction form
    1,421,106.64/1,961,126.60 = 785,202.64/x
  3. Step 3: Cross multiply
    1,421,106.64x = 1,961,126.60 × 785,202.64
  4. Step 4: Simplify right side
    1,421,106.64x = 1,539,881,783,694.22
  5. Step 5: Solve for x
    x = 1,539,881,783,694.22/1,421,106.64
  6. Step 6: Final answer
    x = 1,083,579.33

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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.