Finding the Fourth Proportional to 395,703.12, 545,769.03 and 340,606.26
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Solution
The fourth proportional to 395,703.12, 545,769.03 and 340,606.26 is: 469,777.31
Step by Step Solution
- Step 1: Write the proportion equation
395,703.12 : 545,769.03 = 340,606.26 : x - Step 2: Convert to fraction form
395,703.12/545,769.03 = 340,606.26/x - Step 3: Cross multiply
395,703.12x = 545,769.03 × 340,606.26 - Step 4: Simplify right side
395,703.12x = 185,892,348,132.13 - Step 5: Solve for x
x = 185,892,348,132.13/395,703.12 - Step 6: Final answer
x = 469,777.31
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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.