Finding the Fourth Proportional to 530,392.36, 731,947.44 and 288,676.48
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Solution
The fourth proportional to 530,392.36, 731,947.44 and 288,676.48 is: 398,376.80
Step by Step Solution
- Step 1: Write the proportion equation
530,392.36 : 731,947.44 = 288,676.48 : x - Step 2: Convert to fraction form
530,392.36/731,947.44 = 288,676.48/x - Step 3: Cross multiply
530,392.36x = 731,947.44 × 288,676.48 - Step 4: Simplify right side
530,392.36x = 211,296,010,524.21 - Step 5: Solve for x
x = 211,296,010,524.21/530,392.36 - Step 6: Final answer
x = 398,376.80
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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.