Finding the Fourth Proportional to 905,460.42, 1,357,140.78 and 852,972.42
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Solution
The fourth proportional to 905,460.42, 1,357,140.78 and 852,972.42 is: 1,278,469.64
Step by Step Solution
- Step 1: Write the proportion equation
905,460.42 : 1,357,140.78 = 852,972.42 : x - Step 2: Convert to fraction form
905,460.42/1,357,140.78 = 852,972.42/x - Step 3: Cross multiply
905,460.42x = 1,357,140.78 × 852,972.42 - Step 4: Simplify right side
905,460.42x = 1,157,603,655,397.29 - Step 5: Solve for x
x = 1,157,603,655,397.29/905,460.42 - Step 6: Final answer
x = 1,278,469.64
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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.