Finding the Fourth Proportional to 644,511.61, 889,395.84 and 358,049.17
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Solution
The fourth proportional to 644,511.61, 889,395.84 and 358,049.17 is: 494,091.09
Step by Step Solution
- Step 1: Write the proportion equation
644,511.61 : 889,395.84 = 358,049.17 : x - Step 2: Convert to fraction form
644,511.61/889,395.84 = 358,049.17/x - Step 3: Cross multiply
644,511.61x = 889,395.84 × 358,049.17 - Step 4: Simplify right side
644,511.61x = 318,447,442,313.45 - Step 5: Solve for x
x = 318,447,442,313.45/644,511.61 - Step 6: Final answer
x = 494,091.09
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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.