Finding the Fourth Proportional to 542,715.30, 748,993.08 and 301,075.70
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Solution
The fourth proportional to 542,715.30, 748,993.08 and 301,075.70 is: 415,509.96
Step by Step Solution
- Step 1: Write the proportion equation
542,715.30 : 748,993.08 = 301,075.70 : x - Step 2: Convert to fraction form
542,715.30/748,993.08 = 301,075.70/x - Step 3: Cross multiply
542,715.30x = 748,993.08 × 301,075.70 - Step 4: Simplify right side
542,715.30x = 225,503,612,111.19 - Step 5: Solve for x
x = 225,503,612,111.19/542,715.30 - Step 6: Final answer
x = 415,509.96
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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.