Finding the Fourth Proportional to 922,907.70, 1,288,921.50 and 922,907.70
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Solution
The fourth proportional to 922,907.70, 1,288,921.50 and 922,907.70 is: 1,288,921.50
Step by Step Solution
- Step 1: Write the proportion equation
922,907.70 : 1,288,921.50 = 922,907.70 : x - Step 2: Convert to fraction form
922,907.70/1,288,921.50 = 922,907.70/x - Step 3: Cross multiply
922,907.70x = 1,288,921.50 × 922,907.70 - Step 4: Simplify right side
922,907.70x = 1,189,555,577,045.55 - Step 5: Solve for x
x = 1,189,555,577,045.55/922,907.70 - Step 6: Final answer
x = 1,288,921.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.