Finding the Fourth Proportional to 712,788.84, 1,068,434.55 and 263,223.18
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Solution
The fourth proportional to 712,788.84, 1,068,434.55 and 263,223.18 is: 394,558.28
Step by Step Solution
- Step 1: Write the proportion equation
712,788.84 : 1,068,434.55 = 263,223.18 : x - Step 2: Convert to fraction form
712,788.84/1,068,434.55 = 263,223.18/x - Step 3: Cross multiply
712,788.84x = 1,068,434.55 × 263,223.18 - Step 4: Simplify right side
712,788.84x = 281,236,739,872.87 - Step 5: Solve for x
x = 281,236,739,872.87/712,788.84 - Step 6: Final answer
x = 394,558.28
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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.