Finding the Fourth Proportional to 627,622.12, 866,089.80 and 355,674.08
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Solution
The fourth proportional to 627,622.12, 866,089.80 and 355,674.08 is: 490,813.95
Step by Step Solution
- Step 1: Write the proportion equation
627,622.12 : 866,089.80 = 355,674.08 : x - Step 2: Convert to fraction form
627,622.12/866,089.80 = 355,674.08/x - Step 3: Cross multiply
627,622.12x = 866,089.80 × 355,674.08 - Step 4: Simplify right side
627,622.12x = 308,045,692,812.38 - Step 5: Solve for x
x = 308,045,692,812.38/627,622.12 - Step 6: Final answer
x = 490,813.95
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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.