Finding the Fourth Proportional to 2,113,485.90, 2,916,616.08 and 1,146,616.14
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Solution
The fourth proportional to 2,113,485.90, 2,916,616.08 and 1,146,616.14 is: 1,582,333.28
Step by Step Solution
- Step 1: Write the proportion equation
2,113,485.90 : 2,916,616.08 = 1,146,616.14 : x - Step 2: Convert to fraction form
2,113,485.90/2,916,616.08 = 1,146,616.14/x - Step 3: Cross multiply
2,113,485.90x = 2,916,616.08 × 1,146,616.14 - Step 4: Simplify right side
2,113,485.90x = 3,344,239,071,511.53 - Step 5: Solve for x
x = 3,344,239,071,511.53/2,113,485.90 - Step 6: Final answer
x = 1,582,333.28
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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.