Finding the Fourth Proportional to 518,990.76, 716,190.93 and 304,273.80
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Solution
The fourth proportional to 518,990.76, 716,190.93 and 304,273.80 is: 419,888.28
Step by Step Solution
- Step 1: Write the proportion equation
518,990.76 : 716,190.93 = 304,273.80 : x - Step 2: Convert to fraction form
518,990.76/716,190.93 = 304,273.80/x - Step 3: Cross multiply
518,990.76x = 716,190.93 × 304,273.80 - Step 4: Simplify right side
518,990.76x = 217,918,135,796.63 - Step 5: Solve for x
x = 217,918,135,796.63/518,990.76 - Step 6: Final answer
x = 419,888.28
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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.