Finding the Fourth Proportional to 818,612.97, 1,228,116.08 and 313,165.68
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Solution
The fourth proportional to 818,612.97, 1,228,116.08 and 313,165.68 is: 469,823.74
Step by Step Solution
- Step 1: Write the proportion equation
818,612.97 : 1,228,116.08 = 313,165.68 : x - Step 2: Convert to fraction form
818,612.97/1,228,116.08 = 313,165.68/x - Step 3: Cross multiply
818,612.97x = 1,228,116.08 × 313,165.68 - Step 4: Simplify right side
818,612.97x = 384,603,807,312.13 - Step 5: Solve for x
x = 384,603,807,312.13/818,612.97 - Step 6: Final answer
x = 469,823.74
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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.