Finding the Fourth Proportional to 487,772.10, 672,830.82 and 322,201.08
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Solution
The fourth proportional to 487,772.10, 672,830.82 and 322,201.08 is: 444,442.84
Step by Step Solution
- Step 1: Write the proportion equation
487,772.10 : 672,830.82 = 322,201.08 : x - Step 2: Convert to fraction form
487,772.10/672,830.82 = 322,201.08/x - Step 3: Cross multiply
487,772.10x = 672,830.82 × 322,201.08 - Step 4: Simplify right side
487,772.10x = 216,786,816,861.29 - Step 5: Solve for x
x = 216,786,816,861.29/487,772.10 - Step 6: Final answer
x = 444,442.84
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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.