Finding the Fourth Proportional to 965,138.58, 1,331,892.80 and 535,418.70
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Solution
The fourth proportional to 965,138.58, 1,331,892.80 and 535,418.70 is: 738,878.67
Step by Step Solution
- Step 1: Write the proportion equation
965,138.58 : 1,331,892.80 = 535,418.70 : x - Step 2: Convert to fraction form
965,138.58/1,331,892.80 = 535,418.70/x - Step 3: Cross multiply
965,138.58x = 1,331,892.80 × 535,418.70 - Step 4: Simplify right side
965,138.58x = 713,120,308,838.27 - Step 5: Solve for x
x = 713,120,308,838.27/965,138.58 - Step 6: Final answer
x = 738,878.67
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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.