Finding the Fourth Proportional to 1,512,374.96, 2,087,224.54 and 1,129,737.44
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Solution
The fourth proportional to 1,512,374.96, 2,087,224.54 and 1,129,737.44 is: 1,559,147.55
Step by Step Solution
- Step 1: Write the proportion equation
1,512,374.96 : 2,087,224.54 = 1,129,737.44 : x - Step 2: Convert to fraction form
1,512,374.96/2,087,224.54 = 1,129,737.44/x - Step 3: Cross multiply
1,512,374.96x = 2,087,224.54 × 1,129,737.44 - Step 4: Simplify right side
1,512,374.96x = 2,358,015,710,918.50 - Step 5: Solve for x
x = 2,358,015,710,918.50/1,512,374.96 - Step 6: Final answer
x = 1,559,147.55
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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.