Finding the Fourth Proportional to 836,620.10, 1,257,554.55 and 820,873.70
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Solution
The fourth proportional to 836,620.10, 1,257,554.55 and 820,873.70 is: 1,233,885.55
Step by Step Solution
- Step 1: Write the proportion equation
836,620.10 : 1,257,554.55 = 820,873.70 : x - Step 2: Convert to fraction form
836,620.10/1,257,554.55 = 820,873.70/x - Step 3: Cross multiply
836,620.10x = 1,257,554.55 × 820,873.70 - Step 4: Simplify right side
836,620.10x = 1,032,293,456,410.34 - Step 5: Solve for x
x = 1,032,293,456,410.34/836,620.10 - Step 6: Final answer
x = 1,233,885.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.