Finding the Fourth Proportional to 644,506.21, 889,443.81 and 440,983.99
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Solution
The fourth proportional to 644,506.21, 889,443.81 and 440,983.99 is: 608,575.17
Step by Step Solution
- Step 1: Write the proportion equation
644,506.21 : 889,443.81 = 440,983.99 : x - Step 2: Convert to fraction form
644,506.21/889,443.81 = 440,983.99/x - Step 3: Cross multiply
644,506.21x = 889,443.81 × 440,983.99 - Step 4: Simplify right side
644,506.21x = 392,230,473,562.46 - Step 5: Solve for x
x = 392,230,473,562.46/644,506.21 - Step 6: Final answer
x = 608,575.17
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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.