Finding the Fourth Proportional to 1,258,946.80, 1,888,420.20 and 1,087,704.70
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Solution
The fourth proportional to 1,258,946.80, 1,888,420.20 and 1,087,704.70 is: 1,631,557.05
Step by Step Solution
- Step 1: Write the proportion equation
1,258,946.80 : 1,888,420.20 = 1,087,704.70 : x - Step 2: Convert to fraction form
1,258,946.80/1,888,420.20 = 1,087,704.70/x - Step 3: Cross multiply
1,258,946.80x = 1,888,420.20 × 1,087,704.70 - Step 4: Simplify right side
1,258,946.80x = 2,054,043,527,114.94 - Step 5: Solve for x
x = 2,054,043,527,114.94/1,258,946.80 - Step 6: Final answer
x = 1,631,557.05
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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.