Home / 689,918.80-1,034,878.20-606,974.80

Finding the Fourth Proportional to 689,918.80, 1,034,878.20 and 606,974.80

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Solution

The fourth proportional to 689,918.80, 1,034,878.20 and 606,974.80 is: 910,462.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,918.80 : 1,034,878.20 = 606,974.80 : x
  2. Step 2: Convert to fraction form
    689,918.80/1,034,878.20 = 606,974.80/x
  3. Step 3: Cross multiply
    689,918.80x = 1,034,878.20 × 606,974.80
  4. Step 4: Simplify right side
    689,918.80x = 628,144,988,469.36
  5. Step 5: Solve for x
    x = 628,144,988,469.36/689,918.80
  6. Step 6: Final answer
    x = 910,462.20

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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.