Finding the Fourth Proportional to 1,491,638.84, 2,058,307.20 and 838,161.08
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Solution
The fourth proportional to 1,491,638.84, 2,058,307.20 and 838,161.08 is: 1,156,575.53
Step by Step Solution
- Step 1: Write the proportion equation
1,491,638.84 : 2,058,307.20 = 838,161.08 : x - Step 2: Convert to fraction form
1,491,638.84/2,058,307.20 = 838,161.08/x - Step 3: Cross multiply
1,491,638.84x = 2,058,307.20 × 838,161.08 - Step 4: Simplify right side
1,491,638.84x = 1,725,192,985,723.78 - Step 5: Solve for x
x = 1,725,192,985,723.78/1,491,638.84 - Step 6: Final answer
x = 1,156,575.53
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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.