Finding the Fourth Proportional to 798,312.17, 1,197,997.09 and 438,734.14
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Solution
The fourth proportional to 798,312.17, 1,197,997.09 and 438,734.14 is: 658,391.84
Step by Step Solution
- Step 1: Write the proportion equation
798,312.17 : 1,197,997.09 = 438,734.14 : x - Step 2: Convert to fraction form
798,312.17/1,197,997.09 = 438,734.14/x - Step 3: Cross multiply
798,312.17x = 1,197,997.09 × 438,734.14 - Step 4: Simplify right side
798,312.17x = 525,602,218,911.83 - Step 5: Solve for x
x = 525,602,218,911.83/798,312.17 - Step 6: Final answer
x = 658,391.84
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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.