Finding the Fourth Proportional to 542,583.68, 748,803.84 and 300,889.40
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Solution
The fourth proportional to 542,583.68, 748,803.84 and 300,889.40 is: 415,248.65
Step by Step Solution
- Step 1: Write the proportion equation
542,583.68 : 748,803.84 = 300,889.40 : x - Step 2: Convert to fraction form
542,583.68/748,803.84 = 300,889.40/x - Step 3: Cross multiply
542,583.68x = 748,803.84 × 300,889.40 - Step 4: Simplify right side
542,583.68x = 225,307,138,135.30 - Step 5: Solve for x
x = 225,307,138,135.30/542,583.68 - Step 6: Final answer
x = 415,248.65
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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.