Finding the Fourth Proportional to 1,287,647.99, 1,933,368 and 720,140.96
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Solution
The fourth proportional to 1,287,647.99, 1,933,368 and 720,140.96 is: 1,081,271.82
Step by Step Solution
- Step 1: Write the proportion equation
1,287,647.99 : 1,933,368 = 720,140.96 : x - Step 2: Convert to fraction form
1,287,647.99/1,933,368 = 720,140.96/x - Step 3: Cross multiply
1,287,647.99x = 1,933,368 × 720,140.96 - Step 4: Simplify right side
1,287,647.99x = 1,392,297,477,886.44 - Step 5: Solve for x
x = 1,392,297,477,886.44/1,287,647.99 - Step 6: Final answer
x = 1,081,271.82
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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.