Finding the Fourth Proportional to 644,516.29, 889,457.70 and 440,994.07
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Solution
The fourth proportional to 644,516.29, 889,457.70 and 440,994.07 is: 608,589.07
Step by Step Solution
- Step 1: Write the proportion equation
644,516.29 : 889,457.70 = 440,994.07 : x - Step 2: Convert to fraction form
644,516.29/889,457.70 = 440,994.07/x - Step 3: Cross multiply
644,516.29x = 889,457.70 × 440,994.07 - Step 4: Simplify right side
644,516.29x = 392,245,571,215.84 - Step 5: Solve for x
x = 392,245,571,215.84/644,516.29 - Step 6: Final answer
x = 608,589.07
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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.