Finding the Fourth Proportional to 985,608.12, 1,478,975.94 and 386,622.84
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Solution
The fourth proportional to 985,608.12, 1,478,975.94 and 386,622.84 is: 580,155.41
Step by Step Solution
- Step 1: Write the proportion equation
985,608.12 : 1,478,975.94 = 386,622.84 : x - Step 2: Convert to fraction form
985,608.12/1,478,975.94 = 386,622.84/x - Step 3: Cross multiply
985,608.12x = 1,478,975.94 × 386,622.84 - Step 4: Simplify right side
985,608.12x = 571,805,878,214.47 - Step 5: Solve for x
x = 571,805,878,214.47/985,608.12 - Step 6: Final answer
x = 580,155.41
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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.