Finding the Fourth Proportional to 2,115,557.10, 2,919,386.91 and 1,148,665.26
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Solution
The fourth proportional to 2,115,557.10, 2,919,386.91 and 1,148,665.26 is: 1,585,113.60
Step by Step Solution
- Step 1: Write the proportion equation
2,115,557.10 : 2,919,386.91 = 1,148,665.26 : x - Step 2: Convert to fraction form
2,115,557.10/2,919,386.91 = 1,148,665.26/x - Step 3: Cross multiply
2,115,557.10x = 2,919,386.91 × 1,148,665.26 - Step 4: Simplify right side
2,115,557.10x = 3,353,398,324,015.75 - Step 5: Solve for x
x = 3,353,398,324,015.75/2,115,557.10 - Step 6: Final answer
x = 1,585,113.60
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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.