Finding the Fourth Proportional to 1,067,730.24, 1,601,128.79 and 319,601.28
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Solution
The fourth proportional to 1,067,730.24, 1,601,128.79 and 319,601.28 is: 479,262.26
Step by Step Solution
- Step 1: Write the proportion equation
1,067,730.24 : 1,601,128.79 = 319,601.28 : x - Step 2: Convert to fraction form
1,067,730.24/1,601,128.79 = 319,601.28/x - Step 3: Cross multiply
1,067,730.24x = 1,601,128.79 × 319,601.28 - Step 4: Simplify right side
1,067,730.24x = 511,722,809,130.85 - Step 5: Solve for x
x = 511,722,809,130.85/1,067,730.24 - Step 6: Final answer
x = 479,262.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.