Home / 1,223,015.79-1,687,638.60-714,013.41

Finding the Fourth Proportional to 1,223,015.79, 1,687,638.60 and 714,013.41

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Solution

The fourth proportional to 1,223,015.79, 1,687,638.60 and 714,013.41 is: 985,266.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,015.79 : 1,687,638.60 = 714,013.41 : x
  2. Step 2: Convert to fraction form
    1,223,015.79/1,687,638.60 = 714,013.41/x
  3. Step 3: Cross multiply
    1,223,015.79x = 1,687,638.60 × 714,013.41
  4. Step 4: Simplify right side
    1,223,015.79x = 1,204,996,591,633.63
  5. Step 5: Solve for x
    x = 1,204,996,591,633.63/1,223,015.79
  6. Step 6: Final answer
    x = 985,266.59

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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.