Home / 1,243,135.54-1,716,315.65-851,324.37

Finding the Fourth Proportional to 1,243,135.54, 1,716,315.65 and 851,324.37

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Solution

The fourth proportional to 1,243,135.54, 1,716,315.65 and 851,324.37 is: 1,175,367.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,135.54 : 1,716,315.65 = 851,324.37 : x
  2. Step 2: Convert to fraction form
    1,243,135.54/1,716,315.65 = 851,324.37/x
  3. Step 3: Cross multiply
    1,243,135.54x = 1,716,315.65 × 851,324.37
  4. Step 4: Simplify right side
    1,243,135.54x = 1,461,141,339,457.39
  5. Step 5: Solve for x
    x = 1,461,141,339,457.39/1,243,135.54
  6. Step 6: Final answer
    x = 1,175,367.68

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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.