Home / 776,175.60-1,070,544.96-685,371.36

Finding the Fourth Proportional to 776,175.60, 1,070,544.96 and 685,371.36

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Solution

The fourth proportional to 776,175.60, 1,070,544.96 and 685,371.36 is: 945,302.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    776,175.60 : 1,070,544.96 = 685,371.36 : x
  2. Step 2: Convert to fraction form
    776,175.60/1,070,544.96 = 685,371.36/x
  3. Step 3: Cross multiply
    776,175.60x = 1,070,544.96 × 685,371.36
  4. Step 4: Simplify right side
    776,175.60x = 733,720,855,176.35
  5. Step 5: Solve for x
    x = 733,720,855,176.35/776,175.60
  6. Step 6: Final answer
    x = 945,302.65

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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.