Finding the Fourth Proportional to 1,423,378.80, 2,135,068.20 and 1,361,948.40
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Solution
The fourth proportional to 1,423,378.80, 2,135,068.20 and 1,361,948.40 is: 2,042,922.60
Step by Step Solution
- Step 1: Write the proportion equation
1,423,378.80 : 2,135,068.20 = 1,361,948.40 : x - Step 2: Convert to fraction form
1,423,378.80/2,135,068.20 = 1,361,948.40/x - Step 3: Cross multiply
1,423,378.80x = 2,135,068.20 × 1,361,948.40 - Step 4: Simplify right side
1,423,378.80x = 2,907,852,718,880.88 - Step 5: Solve for x
x = 2,907,852,718,880.88/1,423,378.80 - Step 6: Final answer
x = 2,042,922.60
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.