Finding the Fourth Proportional to 665,887.12, 999,082.18 and 399,832.49
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Solution
The fourth proportional to 665,887.12, 999,082.18 and 399,832.49 is: 599,899.76
Step by Step Solution
- Step 1: Write the proportion equation
665,887.12 : 999,082.18 = 399,832.49 : x - Step 2: Convert to fraction form
665,887.12/999,082.18 = 399,832.49/x - Step 3: Cross multiply
665,887.12x = 999,082.18 × 399,832.49 - Step 4: Simplify right side
665,887.12x = 399,465,518,741.52 - Step 5: Solve for x
x = 399,465,518,741.52/665,887.12 - Step 6: Final answer
x = 599,899.76
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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.