Finding the Fourth Proportional to 852,318.72, 1,278,478.08 and 291,358.08
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Solution
The fourth proportional to 852,318.72, 1,278,478.08 and 291,358.08 is: 437,037.12
Step by Step Solution
- Step 1: Write the proportion equation
852,318.72 : 1,278,478.08 = 291,358.08 : x - Step 2: Convert to fraction form
852,318.72/1,278,478.08 = 291,358.08/x - Step 3: Cross multiply
852,318.72x = 1,278,478.08 × 291,358.08 - Step 4: Simplify right side
852,318.72x = 372,494,918,710.89 - Step 5: Solve for x
x = 372,494,918,710.89/852,318.72 - Step 6: Final answer
x = 437,037.12
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1.5x scale
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.