Finding the Fourth Proportional to 747,308.09, 1,121,149.88 and 214,830.08
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Solution
The fourth proportional to 747,308.09, 1,121,149.88 and 214,830.08 is: 322,299.09
Step by Step Solution
- Step 1: Write the proportion equation
747,308.09 : 1,121,149.88 = 214,830.08 : x - Step 2: Convert to fraction form
747,308.09/1,121,149.88 = 214,830.08/x - Step 3: Cross multiply
747,308.09x = 1,121,149.88 × 214,830.08 - Step 4: Simplify right side
747,308.09x = 240,856,718,412.39 - Step 5: Solve for x
x = 240,856,718,412.39/747,308.09 - Step 6: Final answer
x = 322,299.09
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.