Finding the Fourth Proportional to 3,409,949.20, 4,705,394.88 and 1,881,957.68
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Solution
The fourth proportional to 3,409,949.20, 4,705,394.88 and 1,881,957.68 is: 2,596,916.70
Step by Step Solution
- Step 1: Write the proportion equation
3,409,949.20 : 4,705,394.88 = 1,881,957.68 : x - Step 2: Convert to fraction form
3,409,949.20/4,705,394.88 = 1,881,957.68/x - Step 3: Cross multiply
3,409,949.20x = 4,705,394.88 × 1,881,957.68 - Step 4: Simplify right side
3,409,949.20x = 8,855,354,031,848.68 - Step 5: Solve for x
x = 8,855,354,031,848.68/3,409,949.20 - Step 6: Final answer
x = 2,596,916.70
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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.