Finding the Fourth Proportional to 456,487.70, 684,731.55 and 448,711.70
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Solution
The fourth proportional to 456,487.70, 684,731.55 and 448,711.70 is: 673,067.55
Step by Step Solution
- Step 1: Write the proportion equation
456,487.70 : 684,731.55 = 448,711.70 : x - Step 2: Convert to fraction form
456,487.70/684,731.55 = 448,711.70/x - Step 3: Cross multiply
456,487.70x = 684,731.55 × 448,711.70 - Step 4: Simplify right side
456,487.70x = 307,247,057,844.14 - Step 5: Solve for x
x = 307,247,057,844.14/456,487.70 - Step 6: Final answer
x = 673,067.55
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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.