Finding the Fourth Proportional to 1,097,861.40, 1,515,207.84 and 632,624.76
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Solution
The fourth proportional to 1,097,861.40, 1,515,207.84 and 632,624.76 is: 873,113.85
Step by Step Solution
- Step 1: Write the proportion equation
1,097,861.40 : 1,515,207.84 = 632,624.76 : x - Step 2: Convert to fraction form
1,097,861.40/1,515,207.84 = 632,624.76/x - Step 3: Cross multiply
1,097,861.40x = 1,515,207.84 × 632,624.76 - Step 4: Simplify right side
1,097,861.40x = 958,557,985,390.96 - Step 5: Solve for x
x = 958,557,985,390.96/1,097,861.40 - Step 6: Final answer
x = 873,113.85
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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.