Finding the Fourth Proportional to 644,811.11, 888,901.49 and 450,615.91
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Solution
The fourth proportional to 644,811.11, 888,901.49 and 450,615.91 is: 621,194.56
Step by Step Solution
- Step 1: Write the proportion equation
644,811.11 : 888,901.49 = 450,615.91 : x - Step 2: Convert to fraction form
644,811.11/888,901.49 = 450,615.91/x - Step 3: Cross multiply
644,811.11x = 888,901.49 × 450,615.91 - Step 4: Simplify right side
644,811.11x = 400,553,149,341.37 - Step 5: Solve for x
x = 400,553,149,341.37/644,811.11 - Step 6: Final answer
x = 621,194.56
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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.