Finding the Fourth Proportional to 660,402.24, 912,104.64 and 445,171.20
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Solution
The fourth proportional to 660,402.24, 912,104.64 and 445,171.20 is: 614,841.52
Step by Step Solution
- Step 1: Write the proportion equation
660,402.24 : 912,104.64 = 445,171.20 : x - Step 2: Convert to fraction form
660,402.24/912,104.64 = 445,171.20/x - Step 3: Cross multiply
660,402.24x = 912,104.64 × 445,171.20 - Step 4: Simplify right side
660,402.24x = 406,042,717,114.37 - Step 5: Solve for x
x = 406,042,717,114.37/660,402.24 - Step 6: Final answer
x = 614,841.52
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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.