Finding the Fourth Proportional to 627,720.39, 866,235.87 and 355,813.29
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Solution
The fourth proportional to 627,720.39, 866,235.87 and 355,813.29 is: 491,011.99
Step by Step Solution
- Step 1: Write the proportion equation
627,720.39 : 866,235.87 = 355,813.29 : x - Step 2: Convert to fraction form
627,720.39/866,235.87 = 355,813.29/x - Step 3: Cross multiply
627,720.39x = 866,235.87 × 355,813.29 - Step 4: Simplify right side
627,720.39x = 308,218,234,820.71 - Step 5: Solve for x
x = 308,218,234,820.71/627,720.39 - Step 6: Final answer
x = 491,011.99
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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.