Home / 1,198,638.73-1,654,171.73-689,341.51

Finding the Fourth Proportional to 1,198,638.73, 1,654,171.73 and 689,341.51

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Solution

The fourth proportional to 1,198,638.73, 1,654,171.73 and 689,341.51 is: 951,320.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,198,638.73 : 1,654,171.73 = 689,341.51 : x
  2. Step 2: Convert to fraction form
    1,198,638.73/1,654,171.73 = 689,341.51/x
  3. Step 3: Cross multiply
    1,198,638.73x = 1,654,171.73 × 689,341.51
  4. Step 4: Simplify right side
    1,198,638.73x = 1,140,289,233,160.41
  5. Step 5: Solve for x
    x = 1,140,289,233,160.41/1,198,638.73
  6. Step 6: Final answer
    x = 951,320.20

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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.