Finding the Fourth Proportional to 720,614.08, 1,081,075.68 and 215,214.88
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Solution
The fourth proportional to 720,614.08, 1,081,075.68 and 215,214.88 is: 322,868.48
Step by Step Solution
- Step 1: Write the proportion equation
720,614.08 : 1,081,075.68 = 215,214.88 : x - Step 2: Convert to fraction form
720,614.08/1,081,075.68 = 215,214.88/x - Step 3: Cross multiply
720,614.08x = 1,081,075.68 × 215,214.88 - Step 4: Simplify right side
720,614.08x = 232,663,572,742.12 - Step 5: Solve for x
x = 232,663,572,742.12/720,614.08 - Step 6: Final answer
x = 322,868.48
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.