Finding the Fourth Proportional to 2,108,072.39, 2,909,139.30 and 1,141,202.12
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Solution
The fourth proportional to 2,108,072.39, 2,909,139.30 and 1,141,202.12 is: 1,574,858.60
Step by Step Solution
- Step 1: Write the proportion equation
2,108,072.39 : 2,909,139.30 = 1,141,202.12 : x - Step 2: Convert to fraction form
2,108,072.39/2,909,139.30 = 1,141,202.12/x - Step 3: Cross multiply
2,108,072.39x = 2,909,139.30 × 1,141,202.12 - Step 4: Simplify right side
2,108,072.39x = 3,319,915,921,989.62 - Step 5: Solve for x
x = 3,319,915,921,989.62/2,108,072.39 - Step 6: Final answer
x = 1,574,858.60
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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.