Finding the Fourth Proportional to 907.08, 1,252 and 558.08
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Solution
The fourth proportional to 907.08, 1,252 and 558.08 is: 770.29
Step by Step Solution
- Step 1: Write the proportion equation
907.08 : 1,252 = 558.08 : x - Step 2: Convert to fraction form
907.08/1,252 = 558.08/x - Step 3: Cross multiply
907.08x = 1,252 × 558.08 - Step 4: Simplify right side
907.08x = 698,716.16 - Step 5: Solve for x
x = 698,716.16/907.08 - Step 6: Final answer
x = 770.29
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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.