Finding the Fourth Proportional to 1,121,908.08, 1,681,861.77 and 411,771.36
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Solution
The fourth proportional to 1,121,908.08, 1,681,861.77 and 411,771.36 is: 617,289.88
Step by Step Solution
- Step 1: Write the proportion equation
1,121,908.08 : 1,681,861.77 = 411,771.36 : x - Step 2: Convert to fraction form
1,121,908.08/1,681,861.77 = 411,771.36/x - Step 3: Cross multiply
1,121,908.08x = 1,681,861.77 × 411,771.36 - Step 4: Simplify right side
1,121,908.08x = 692,542,508,364.91 - Step 5: Solve for x
x = 692,542,508,364.91/1,121,908.08 - Step 6: Final answer
x = 617,289.88
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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.