Finding the Fourth Proportional to 668,475.08, 922,406.84 and 378,126.23
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Solution
The fourth proportional to 668,475.08, 922,406.84 and 378,126.23 is: 521,763.98
Step by Step Solution
- Step 1: Write the proportion equation
668,475.08 : 922,406.84 = 378,126.23 : x - Step 2: Convert to fraction form
668,475.08/922,406.84 = 378,126.23/x - Step 3: Cross multiply
668,475.08x = 922,406.84 × 378,126.23 - Step 4: Simplify right side
668,475.08x = 348,786,215,850.72 - Step 5: Solve for x
x = 348,786,215,850.72/668,475.08 - Step 6: Final answer
x = 521,763.98
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1.5x scale
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.