Finding the Fourth Proportional to 483,114.05, 721,417.75 and 394,543.25
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Solution
The fourth proportional to 483,114.05, 721,417.75 and 394,543.25 is: 589,157.99
Step by Step Solution
- Step 1: Write the proportion equation
483,114.05 : 721,417.75 = 394,543.25 : x - Step 2: Convert to fraction form
483,114.05/721,417.75 = 394,543.25/x - Step 3: Cross multiply
483,114.05x = 721,417.75 × 394,543.25 - Step 4: Simplify right side
483,114.05x = 284,630,506,482.59 - Step 5: Solve for x
x = 284,630,506,482.59/483,114.05 - Step 6: Final answer
x = 589,157.99
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.