Finding the Fourth Proportional to 1,591,420.24, 2,387,106.69 and 393,342.49
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Solution
The fourth proportional to 1,591,420.24, 2,387,106.69 and 393,342.49 is: 590,007.88
Step by Step Solution
- Step 1: Write the proportion equation
1,591,420.24 : 2,387,106.69 = 393,342.49 : x - Step 2: Convert to fraction form
1,591,420.24/2,387,106.69 = 393,342.49/x - Step 3: Cross multiply
1,591,420.24x = 2,387,106.69 × 393,342.49 - Step 4: Simplify right side
1,591,420.24x = 938,950,489,340.26 - Step 5: Solve for x
x = 938,950,489,340.26/1,591,420.24 - Step 6: Final answer
x = 590,007.88
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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.