Finding the Fourth Proportional to 3,462,433.63, 4,778,405.68 and 1,913,661.99
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Solution
The fourth proportional to 3,462,433.63, 4,778,405.68 and 1,913,661.99 is: 2,640,990.21
Step by Step Solution
- Step 1: Write the proportion equation
3,462,433.63 : 4,778,405.68 = 1,913,661.99 : x - Step 2: Convert to fraction form
3,462,433.63/4,778,405.68 = 1,913,661.99/x - Step 3: Cross multiply
3,462,433.63x = 4,778,405.68 × 1,913,661.99 - Step 4: Simplify right side
3,462,433.63x = 9,144,253,322,616.10 - Step 5: Solve for x
x = 9,144,253,322,616.10/3,462,433.63 - Step 6: Final answer
x = 2,640,990.21
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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.