Finding the Fourth Proportional to 2,121,124.26, 2,927,213.08 and 1,154,316.90
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Solution
The fourth proportional to 2,121,124.26, 2,927,213.08 and 1,154,316.90 is: 1,592,990.85
Step by Step Solution
- Step 1: Write the proportion equation
2,121,124.26 : 2,927,213.08 = 1,154,316.90 : x - Step 2: Convert to fraction form
2,121,124.26/2,927,213.08 = 1,154,316.90/x - Step 3: Cross multiply
2,121,124.26x = 2,927,213.08 × 1,154,316.90 - Step 4: Simplify right side
2,121,124.26x = 3,378,931,528,145.05 - Step 5: Solve for x
x = 3,378,931,528,145.05/2,121,124.26 - Step 6: Final answer
x = 1,592,990.85
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.