Finding the Fourth Proportional to 1,102,514.09, 1,653,873.42 and 428,646.59
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Solution
The fourth proportional to 1,102,514.09, 1,653,873.42 and 428,646.59 is: 643,009.65
Step by Step Solution
- Step 1: Write the proportion equation
1,102,514.09 : 1,653,873.42 = 428,646.59 : x - Step 2: Convert to fraction form
1,102,514.09/1,653,873.42 = 428,646.59/x - Step 3: Cross multiply
1,102,514.09x = 1,653,873.42 × 428,646.59 - Step 4: Simplify right side
1,102,514.09x = 708,927,198,860.89 - Step 5: Solve for x
x = 708,927,198,860.89/1,102,514.09 - Step 6: Final answer
x = 643,009.65
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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.