Home / 1,419,030.23-2,128,469.02-698,653.78

Finding the Fourth Proportional to 1,419,030.23, 2,128,469.02 and 698,653.78

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Solution

The fourth proportional to 1,419,030.23, 2,128,469.02 and 698,653.78 is: 1,047,943.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,419,030.23 : 2,128,469.02 = 698,653.78 : x
  2. Step 2: Convert to fraction form
    1,419,030.23/2,128,469.02 = 698,653.78/x
  3. Step 3: Cross multiply
    1,419,030.23x = 2,128,469.02 × 698,653.78
  4. Step 4: Simplify right side
    1,419,030.23x = 1,487,062,919,368.09
  5. Step 5: Solve for x
    x = 1,487,062,919,368.09/1,419,030.23
  6. Step 6: Final answer
    x = 1,047,943.09

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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.