Finding the Fourth Proportional to 447,750.40, 671,625.60 and 389,430.40
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Solution
The fourth proportional to 447,750.40, 671,625.60 and 389,430.40 is: 584,145.60
Step by Step Solution
- Step 1: Write the proportion equation
447,750.40 : 671,625.60 = 389,430.40 : x - Step 2: Convert to fraction form
447,750.40/671,625.60 = 389,430.40/x - Step 3: Cross multiply
447,750.40x = 671,625.60 × 389,430.40 - Step 4: Simplify right side
447,750.40x = 261,551,426,058.24 - Step 5: Solve for x
x = 261,551,426,058.24/447,750.40 - Step 6: Final answer
x = 584,145.60
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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.