Home / 1,400,768.90-1,946,111.28-1,383,972.74

Finding the Fourth Proportional to 1,400,768.90, 1,946,111.28 and 1,383,972.74

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Solution

The fourth proportional to 1,400,768.90, 1,946,111.28 and 1,383,972.74 is: 1,922,776.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,768.90 : 1,946,111.28 = 1,383,972.74 : x
  2. Step 2: Convert to fraction form
    1,400,768.90/1,946,111.28 = 1,383,972.74/x
  3. Step 3: Cross multiply
    1,400,768.90x = 1,946,111.28 × 1,383,972.74
  4. Step 4: Simplify right side
    1,400,768.90x = 2,693,364,960,526.51
  5. Step 5: Solve for x
    x = 2,693,364,960,526.51/1,400,768.90
  6. Step 6: Final answer
    x = 1,922,776.10

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.