Finding the Fourth Proportional to 1,512,709.68, 2,087,539.80 and 824,381.76
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Solution
The fourth proportional to 1,512,709.68, 2,087,539.80 and 824,381.76 is: 1,137,647.07
Step by Step Solution
- Step 1: Write the proportion equation
1,512,709.68 : 2,087,539.80 = 824,381.76 : x - Step 2: Convert to fraction form
1,512,709.68/2,087,539.80 = 824,381.76/x - Step 3: Cross multiply
1,512,709.68x = 2,087,539.80 × 824,381.76 - Step 4: Simplify right side
1,512,709.68x = 1,720,929,734,394.05 - Step 5: Solve for x
x = 1,720,929,734,394.05/1,512,709.68 - Step 6: Final answer
x = 1,137,647.07
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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.