Finding the Fourth Proportional to 711,965.80, 1,067,948.70 and 213,329.80
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Solution
The fourth proportional to 711,965.80, 1,067,948.70 and 213,329.80 is: 319,994.70
Step by Step Solution
- Step 1: Write the proportion equation
711,965.80 : 1,067,948.70 = 213,329.80 : x - Step 2: Convert to fraction form
711,965.80/1,067,948.70 = 213,329.80/x - Step 3: Cross multiply
711,965.80x = 1,067,948.70 × 213,329.80 - Step 4: Simplify right side
711,965.80x = 227,825,282,581.26 - Step 5: Solve for x
x = 227,825,282,581.26/711,965.80 - Step 6: Final answer
x = 319,994.70
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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.