Finding the Fourth Proportional to 770,077.68, 1,062,280.56 and 447,752.12
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Solution
The fourth proportional to 770,077.68, 1,062,280.56 and 447,752.12 is: 617,649.86
Step by Step Solution
- Step 1: Write the proportion equation
770,077.68 : 1,062,280.56 = 447,752.12 : x - Step 2: Convert to fraction form
770,077.68/1,062,280.56 = 447,752.12/x - Step 3: Cross multiply
770,077.68x = 1,062,280.56 × 447,752.12 - Step 4: Simplify right side
770,077.68x = 475,638,372,774.79 - Step 5: Solve for x
x = 475,638,372,774.79/770,077.68 - Step 6: Final answer
x = 617,649.86
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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.