Finding the Fourth Proportional to 3,128,449.13, 4,317,259.80 and 1,697,665.13
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Solution
The fourth proportional to 3,128,449.13, 4,317,259.80 and 1,697,665.13 is: 2,342,777.88
Step by Step Solution
- Step 1: Write the proportion equation
3,128,449.13 : 4,317,259.80 = 1,697,665.13 : x - Step 2: Convert to fraction form
3,128,449.13/4,317,259.80 = 1,697,665.13/x - Step 3: Cross multiply
3,128,449.13x = 4,317,259.80 × 1,697,665.13 - Step 4: Simplify right side
3,128,449.13x = 7,329,261,419,610.77 - Step 5: Solve for x
x = 7,329,261,419,610.77/3,128,449.13 - Step 6: Final answer
x = 2,342,777.88
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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.