Finding the Fourth Proportional to 1,310,321.18, 1,965,654.71 and 457,408.19
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Solution
The fourth proportional to 1,310,321.18, 1,965,654.71 and 457,408.19 is: 686,172.66
Step by Step Solution
- Step 1: Write the proportion equation
1,310,321.18 : 1,965,654.71 = 457,408.19 : x - Step 2: Convert to fraction form
1,310,321.18/1,965,654.71 = 457,408.19/x - Step 3: Cross multiply
1,310,321.18x = 1,965,654.71 × 457,408.19 - Step 4: Simplify right side
1,310,321.18x = 899,106,563,066.08 - Step 5: Solve for x
x = 899,106,563,066.08/1,310,321.18 - Step 6: Final answer
x = 686,172.66
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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.