Finding the Fourth Proportional to 530,425.44, 731,976.84 and 288,713.34
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Solution
The fourth proportional to 530,425.44, 731,976.84 and 288,713.34 is: 398,418.82
Step by Step Solution
- Step 1: Write the proportion equation
530,425.44 : 731,976.84 = 288,713.34 : x - Step 2: Convert to fraction form
530,425.44/731,976.84 = 288,713.34/x - Step 3: Cross multiply
530,425.44x = 731,976.84 × 288,713.34 - Step 4: Simplify right side
530,425.44x = 211,331,478,279.05 - Step 5: Solve for x
x = 211,331,478,279.05/530,425.44 - Step 6: Final answer
x = 398,418.82
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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.