Home / 1,131,431.76-1,697,886-422,027.28

Finding the Fourth Proportional to 1,131,431.76, 1,697,886 and 422,027.28

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Solution

The fourth proportional to 1,131,431.76, 1,697,886 and 422,027.28 is: 633,316.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,131,431.76 : 1,697,886 = 422,027.28 : x
  2. Step 2: Convert to fraction form
    1,131,431.76/1,697,886 = 422,027.28/x
  3. Step 3: Cross multiply
    1,131,431.76x = 1,697,886 × 422,027.28
  4. Step 4: Simplify right side
    1,131,431.76x = 716,554,210,330.08
  5. Step 5: Solve for x
    x = 716,554,210,330.08/1,131,431.76
  6. Step 6: Final answer
    x = 633,316.33

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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.