Finding the Fourth Proportional to 463,117.68, 638,805.84 and 371,456.90
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Solution
The fourth proportional to 463,117.68, 638,805.84 and 371,456.90 is: 512,372.66
Step by Step Solution
- Step 1: Write the proportion equation
463,117.68 : 638,805.84 = 371,456.90 : x - Step 2: Convert to fraction form
463,117.68/638,805.84 = 371,456.90/x - Step 3: Cross multiply
463,117.68x = 638,805.84 × 371,456.90 - Step 4: Simplify right side
463,117.68x = 237,288,837,028.30 - Step 5: Solve for x
x = 237,288,837,028.30/463,117.68 - Step 6: Final answer
x = 512,372.66
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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.