Finding the Fourth Proportional to 985,589.01, 1,478,543.28 and 386,225.19
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Solution
The fourth proportional to 985,589.01, 1,478,543.28 and 386,225.19 is: 579,400.39
Step by Step Solution
- Step 1: Write the proportion equation
985,589.01 : 1,478,543.28 = 386,225.19 : x - Step 2: Convert to fraction form
985,589.01/1,478,543.28 = 386,225.19/x - Step 3: Cross multiply
985,589.01x = 1,478,543.28 × 386,225.19 - Step 4: Simplify right side
985,589.01x = 571,050,659,241.22 - Step 5: Solve for x
x = 571,050,659,241.22/985,589.01 - Step 6: Final answer
x = 579,400.39
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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.