Finding the Fourth Proportional to 605,221.70, 907,832.55 and 447,757.70
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Solution
The fourth proportional to 605,221.70, 907,832.55 and 447,757.70 is: 671,636.55
Step by Step Solution
- Step 1: Write the proportion equation
605,221.70 : 907,832.55 = 447,757.70 : x - Step 2: Convert to fraction form
605,221.70/907,832.55 = 447,757.70/x - Step 3: Cross multiply
605,221.70x = 907,832.55 × 447,757.70 - Step 4: Simplify right side
605,221.70x = 406,489,014,573.14 - Step 5: Solve for x
x = 406,489,014,573.14/605,221.70 - Step 6: Final answer
x = 671,636.55
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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.