Home / 1,020,637.67-1,408,239.68-857,912.72

Finding the Fourth Proportional to 1,020,637.67, 1,408,239.68 and 857,912.72

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Solution

The fourth proportional to 1,020,637.67, 1,408,239.68 and 857,912.72 is: 1,183,717.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,637.67 : 1,408,239.68 = 857,912.72 : x
  2. Step 2: Convert to fraction form
    1,020,637.67/1,408,239.68 = 857,912.72/x
  3. Step 3: Cross multiply
    1,020,637.67x = 1,408,239.68 × 857,912.72
  4. Step 4: Simplify right side
    1,020,637.67x = 1,208,146,722,949.97
  5. Step 5: Solve for x
    x = 1,208,146,722,949.97/1,020,637.67
  6. Step 6: Final answer
    x = 1,183,717.56

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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.