Finding the Fourth Proportional to 1,728,101.80, 2,587,616.70 and 1,219,918.60
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Solution
The fourth proportional to 1,728,101.80, 2,587,616.70 and 1,219,918.60 is: 1,826,675.80
Step by Step Solution
- Step 1: Write the proportion equation
1,728,101.80 : 2,587,616.70 = 1,219,918.60 : x - Step 2: Convert to fraction form
1,728,101.80/2,587,616.70 = 1,219,918.60/x - Step 3: Cross multiply
1,728,101.80x = 2,587,616.70 × 1,219,918.60 - Step 4: Simplify right side
1,728,101.80x = 3,156,681,742,000.62 - Step 5: Solve for x
x = 3,156,681,742,000.62/1,728,101.80 - Step 6: Final answer
x = 1,826,675.80
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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.