Finding the Fourth Proportional to 808,787.84, 1,213,186.68 and 359,403.08
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Solution
The fourth proportional to 808,787.84, 1,213,186.68 and 359,403.08 is: 539,106.81
Step by Step Solution
- Step 1: Write the proportion equation
808,787.84 : 1,213,186.68 = 359,403.08 : x - Step 2: Convert to fraction form
808,787.84/1,213,186.68 = 359,403.08/x - Step 3: Cross multiply
808,787.84x = 1,213,186.68 × 359,403.08 - Step 4: Simplify right side
808,787.84x = 436,023,029,406.97 - Step 5: Solve for x
x = 436,023,029,406.97/808,787.84 - Step 6: Final answer
x = 539,106.81
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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.