Finding the Fourth Proportional to 372,457.80, 558,686.70 and 349,129.80
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Solution
The fourth proportional to 372,457.80, 558,686.70 and 349,129.80 is: 523,694.70
Step by Step Solution
- Step 1: Write the proportion equation
372,457.80 : 558,686.70 = 349,129.80 : x - Step 2: Convert to fraction form
372,457.80/558,686.70 = 349,129.80/x - Step 3: Cross multiply
372,457.80x = 558,686.70 × 349,129.80 - Step 4: Simplify right side
372,457.80x = 195,054,175,833.66 - Step 5: Solve for x
x = 195,054,175,833.66/372,457.80 - Step 6: Final answer
x = 523,694.70
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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.