Finding the Fourth Proportional to 3,121,173.24, 4,681,921.62 and 991,423.80
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Solution
The fourth proportional to 3,121,173.24, 4,681,921.62 and 991,423.80 is: 1,487,187.08
Step by Step Solution
- Step 1: Write the proportion equation
3,121,173.24 : 4,681,921.62 = 991,423.80 : x - Step 2: Convert to fraction form
3,121,173.24/4,681,921.62 = 991,423.80/x - Step 3: Cross multiply
3,121,173.24x = 4,681,921.62 × 991,423.80 - Step 4: Simplify right side
3,121,173.24x = 4,641,768,523,802.56 - Step 5: Solve for x
x = 4,641,768,523,802.56/3,121,173.24 - Step 6: Final answer
x = 1,487,187.08
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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.