Home / 1,358,131.29-1,874,111.48-785,208.36

Finding the Fourth Proportional to 1,358,131.29, 1,874,111.48 and 785,208.36

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Solution

The fourth proportional to 1,358,131.29, 1,874,111.48 and 785,208.36 is: 1,083,524.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,358,131.29 : 1,874,111.48 = 785,208.36 : x
  2. Step 2: Convert to fraction form
    1,358,131.29/1,874,111.48 = 785,208.36/x
  3. Step 3: Cross multiply
    1,358,131.29x = 1,874,111.48 × 785,208.36
  4. Step 4: Simplify right side
    1,358,131.29x = 1,471,568,007,714.38
  5. Step 5: Solve for x
    x = 1,471,568,007,714.38/1,358,131.29
  6. Step 6: Final answer
    x = 1,083,524.12

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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.