Finding the Fourth Proportional to 665,861.68, 999,044.28 and 399,807.28
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Solution
The fourth proportional to 665,861.68, 999,044.28 and 399,807.28 is: 599,862.09
Step by Step Solution
- Step 1: Write the proportion equation
665,861.68 : 999,044.28 = 399,807.28 : x - Step 2: Convert to fraction form
665,861.68/999,044.28 = 399,807.28/x - Step 3: Cross multiply
665,861.68x = 999,044.28 × 399,807.28 - Step 4: Simplify right side
665,861.68x = 399,425,176,186.36 - Step 5: Solve for x
x = 399,425,176,186.36/665,861.68 - Step 6: Final answer
x = 599,862.09
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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.