Finding the Fourth Proportional to 542,810.62, 748,988.94 and 301,054.78
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Solution
The fourth proportional to 542,810.62, 748,988.94 and 301,054.78 is: 415,405.84
Step by Step Solution
- Step 1: Write the proportion equation
542,810.62 : 748,988.94 = 301,054.78 : x - Step 2: Convert to fraction form
542,810.62/748,988.94 = 301,054.78/x - Step 3: Cross multiply
542,810.62x = 748,988.94 × 301,054.78 - Step 4: Simplify right side
542,810.62x = 225,486,700,554.13 - Step 5: Solve for x
x = 225,486,700,554.13/542,810.62 - Step 6: Final answer
x = 415,405.84
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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.