Home / 1,289,019.21-1,778,786.15-716,094.33

Finding the Fourth Proportional to 1,289,019.21, 1,778,786.15 and 716,094.33

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Solution

The fourth proportional to 1,289,019.21, 1,778,786.15 and 716,094.33 is: 988,176.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,019.21 : 1,778,786.15 = 716,094.33 : x
  2. Step 2: Convert to fraction form
    1,289,019.21/1,778,786.15 = 716,094.33/x
  3. Step 3: Cross multiply
    1,289,019.21x = 1,778,786.15 × 716,094.33
  4. Step 4: Simplify right side
    1,289,019.21x = 1,273,778,676,297.53
  5. Step 5: Solve for x
    x = 1,273,778,676,297.53/1,289,019.21
  6. Step 6: Final answer
    x = 988,176.64

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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.