Home / 1,124,088.36-1,686,128.49-404,428.56

Finding the Fourth Proportional to 1,124,088.36, 1,686,128.49 and 404,428.56

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Solution

The fourth proportional to 1,124,088.36, 1,686,128.49 and 404,428.56 is: 606,641.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,124,088.36 : 1,686,128.49 = 404,428.56 : x
  2. Step 2: Convert to fraction form
    1,124,088.36/1,686,128.49 = 404,428.56/x
  3. Step 3: Cross multiply
    1,124,088.36x = 1,686,128.49 × 404,428.56
  4. Step 4: Simplify right side
    1,124,088.36x = 681,918,517,185.68
  5. Step 5: Solve for x
    x = 681,918,517,185.68/1,124,088.36
  6. Step 6: Final answer
    x = 606,641.38

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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.