Finding the Fourth Proportional to 1,284,266.10, 1,773,478.53 and 961,415.70
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Solution
The fourth proportional to 1,284,266.10, 1,773,478.53 and 961,415.70 is: 1,327,645.50
Step by Step Solution
- Step 1: Write the proportion equation
1,284,266.10 : 1,773,478.53 = 961,415.70 : x - Step 2: Convert to fraction form
1,284,266.10/1,773,478.53 = 961,415.70/x - Step 3: Cross multiply
1,284,266.10x = 1,773,478.53 × 961,415.70 - Step 4: Simplify right side
1,284,266.10x = 1,705,050,102,354.92 - Step 5: Solve for x
x = 1,705,050,102,354.92/1,284,266.10 - Step 6: Final answer
x = 1,327,645.50
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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.