Finding the Fourth Proportional to 746,214.12, 1,118,755.26 and 385,999.08
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Solution
The fourth proportional to 746,214.12, 1,118,755.26 and 385,999.08 is: 578,705.88
Step by Step Solution
- Step 1: Write the proportion equation
746,214.12 : 1,118,755.26 = 385,999.08 : x - Step 2: Convert to fraction form
746,214.12/1,118,755.26 = 385,999.08/x - Step 3: Cross multiply
746,214.12x = 1,118,755.26 × 385,999.08 - Step 4: Simplify right side
746,214.12x = 431,838,501,105.16 - Step 5: Solve for x
x = 431,838,501,105.16/746,214.12 - Step 6: Final answer
x = 578,705.88
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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.