Finding the Fourth Proportional to 912,436.28, 1,368,748.08 and 344,295.54
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Solution
The fourth proportional to 912,436.28, 1,368,748.08 and 344,295.54 is: 516,478.65
Step by Step Solution
- Step 1: Write the proportion equation
912,436.28 : 1,368,748.08 = 344,295.54 : x - Step 2: Convert to fraction form
912,436.28/1,368,748.08 = 344,295.54/x - Step 3: Cross multiply
912,436.28x = 1,368,748.08 × 344,295.54 - Step 4: Simplify right side
912,436.28x = 471,253,859,327.56 - Step 5: Solve for x
x = 471,253,859,327.56/912,436.28 - Step 6: Final answer
x = 516,478.65
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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.