Finding the Fourth Proportional to 637,105.62, 879,378.47 and 375,689.24
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Solution
The fourth proportional to 637,105.62, 879,378.47 and 375,689.24 is: 518,552.99
Step by Step Solution
- Step 1: Write the proportion equation
637,105.62 : 879,378.47 = 375,689.24 : x - Step 2: Convert to fraction form
637,105.62/879,378.47 = 375,689.24/x - Step 3: Cross multiply
637,105.62x = 879,378.47 × 375,689.24 - Step 4: Simplify right side
637,105.62x = 330,373,022,791.32 - Step 5: Solve for x
x = 330,373,022,791.32/637,105.62 - Step 6: Final answer
x = 518,552.99
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Double scale
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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.