Finding the Fourth Proportional to 808,675.80, 1,213,013.70 and 684,259.80
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Solution
The fourth proportional to 808,675.80, 1,213,013.70 and 684,259.80 is: 1,026,389.70
Step by Step Solution
- Step 1: Write the proportion equation
808,675.80 : 1,213,013.70 = 684,259.80 : x - Step 2: Convert to fraction form
808,675.80/1,213,013.70 = 684,259.80/x - Step 3: Cross multiply
808,675.80x = 1,213,013.70 × 684,259.80 - Step 4: Simplify right side
808,675.80x = 830,016,511,759.26 - Step 5: Solve for x
x = 830,016,511,759.26/808,675.80 - Step 6: Final answer
x = 1,026,389.70
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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.