Finding the Fourth Proportional to 2,115,518.45, 2,919,466.19 and 1,148,689.49
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Solution
The fourth proportional to 2,115,518.45, 2,919,466.19 and 1,148,689.49 is: 1,585,219.04
Step by Step Solution
- Step 1: Write the proportion equation
2,115,518.45 : 2,919,466.19 = 1,148,689.49 : x - Step 2: Convert to fraction form
2,115,518.45/2,919,466.19 = 1,148,689.49/x - Step 3: Cross multiply
2,115,518.45x = 2,919,466.19 × 1,148,689.49 - Step 4: Simplify right side
2,115,518.45x = 3,353,560,117,137.74 - Step 5: Solve for x
x = 3,353,560,117,137.74/2,115,518.45 - Step 6: Final answer
x = 1,585,219.04
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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.