Finding the Fourth Proportional to 545,007.75, 752,110.70 and 306,543.75
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Solution
The fourth proportional to 545,007.75, 752,110.70 and 306,543.75 is: 423,030.38
Step by Step Solution
- Step 1: Write the proportion equation
545,007.75 : 752,110.70 = 306,543.75 : x - Step 2: Convert to fraction form
545,007.75/752,110.70 = 306,543.75/x - Step 3: Cross multiply
545,007.75x = 752,110.70 × 306,543.75 - Step 4: Simplify right side
545,007.75x = 230,554,834,393.13 - Step 5: Solve for x
x = 230,554,834,393.13/545,007.75 - Step 6: Final answer
x = 423,030.38
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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.