Finding the Fourth Proportional to 542,173.01, 748,189.61 and 300,455.09
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Solution
The fourth proportional to 542,173.01, 748,189.61 and 300,455.09 is: 414,622.95
Step by Step Solution
- Step 1: Write the proportion equation
542,173.01 : 748,189.61 = 300,455.09 : x - Step 2: Convert to fraction form
542,173.01/748,189.61 = 300,455.09/x - Step 3: Cross multiply
542,173.01x = 748,189.61 × 300,455.09 - Step 4: Simplify right side
542,173.01x = 224,797,371,366.39 - Step 5: Solve for x
x = 224,797,371,366.39/542,173.01 - Step 6: Final answer
x = 414,622.95
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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.