Finding the Fourth Proportional to 486,459.12, 669,827.34 and 440,840.19
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Solution
The fourth proportional to 486,459.12, 669,827.34 and 440,840.19 is: 607,012.59
Step by Step Solution
- Step 1: Write the proportion equation
486,459.12 : 669,827.34 = 440,840.19 : x - Step 2: Convert to fraction form
486,459.12/669,827.34 = 440,840.19/x - Step 3: Cross multiply
486,459.12x = 669,827.34 × 440,840.19 - Step 4: Simplify right side
486,459.12x = 295,286,811,832.80 - Step 5: Solve for x
x = 295,286,811,832.80/486,459.12 - Step 6: Final answer
x = 607,012.59
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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.