Finding the Fourth Proportional to 627,606.12, 866,067.75 and 355,658.07
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Solution
The fourth proportional to 627,606.12, 866,067.75 and 355,658.07 is: 490,791.88
Step by Step Solution
- Step 1: Write the proportion equation
627,606.12 : 866,067.75 = 355,658.07 : x - Step 2: Convert to fraction form
627,606.12/866,067.75 = 355,658.07/x - Step 3: Cross multiply
627,606.12x = 866,067.75 × 355,658.07 - Step 4: Simplify right side
627,606.12x = 308,023,984,454.24 - Step 5: Solve for x
x = 308,023,984,454.24/627,606.12 - Step 6: Final answer
x = 490,791.88
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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.