Finding the Fourth Proportional to 637,207.48, 879,339.36 and 350,721.40
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Solution
The fourth proportional to 637,207.48, 879,339.36 and 350,721.40 is: 483,991.70
Step by Step Solution
- Step 1: Write the proportion equation
637,207.48 : 879,339.36 = 350,721.40 : x - Step 2: Convert to fraction form
637,207.48/879,339.36 = 350,721.40/x - Step 3: Cross multiply
637,207.48x = 879,339.36 × 350,721.40 - Step 4: Simplify right side
637,207.48x = 308,403,131,414.30 - Step 5: Solve for x
x = 308,403,131,414.30/637,207.48 - Step 6: Final answer
x = 483,991.70
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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.