Finding the Fourth Proportional to 1,232,419.12, 1,700,446.80 and 715,866.14
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Solution
The fourth proportional to 1,232,419.12, 1,700,446.80 and 715,866.14 is: 987,725.90
Step by Step Solution
- Step 1: Write the proportion equation
1,232,419.12 : 1,700,446.80 = 715,866.14 : x - Step 2: Convert to fraction form
1,232,419.12/1,700,446.80 = 715,866.14/x - Step 3: Cross multiply
1,232,419.12x = 1,700,446.80 × 715,866.14 - Step 4: Simplify right side
1,232,419.12x = 1,217,292,286,991.35 - Step 5: Solve for x
x = 1,217,292,286,991.35/1,232,419.12 - Step 6: Final answer
x = 987,725.90
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.