Finding the Fourth Proportional to 907.52, 1,251.99 and 558
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Solution
The fourth proportional to 907.52, 1,251.99 and 558 is: 769.81
Step by Step Solution
- Step 1: Write the proportion equation
907.52 : 1,251.99 = 558 : x - Step 2: Convert to fraction form
907.52/1,251.99 = 558/x - Step 3: Cross multiply
907.52x = 1,251.99 × 558 - Step 4: Simplify right side
907.52x = 698,610.42 - Step 5: Solve for x
x = 698,610.42/907.52 - Step 6: Final answer
x = 769.81
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.