Finding the Fourth Proportional to 771,553.48, 1,064,571.60 and 465,679.48
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Solution
The fourth proportional to 771,553.48, 1,064,571.60 and 465,679.48 is: 642,533.75
Step by Step Solution
- Step 1: Write the proportion equation
771,553.48 : 1,064,571.60 = 465,679.48 : x - Step 2: Convert to fraction form
771,553.48/1,064,571.60 = 465,679.48/x - Step 3: Cross multiply
771,553.48x = 1,064,571.60 × 465,679.48 - Step 4: Simplify right side
771,553.48x = 495,749,149,110.77 - Step 5: Solve for x
x = 495,749,149,110.77/771,553.48 - Step 6: Final answer
x = 642,533.75
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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.