Finding the Fourth Proportional to 626,378.80, 864,398.36 and 339,891.52
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Solution
The fourth proportional to 626,378.80, 864,398.36 and 339,891.52 is: 469,047.92
Step by Step Solution
- Step 1: Write the proportion equation
626,378.80 : 864,398.36 = 339,891.52 : x - Step 2: Convert to fraction form
626,378.80/864,398.36 = 339,891.52/x - Step 3: Cross multiply
626,378.80x = 864,398.36 × 339,891.52 - Step 4: Simplify right side
626,378.80x = 293,801,672,465.91 - Step 5: Solve for x
x = 293,801,672,465.91/626,378.80 - Step 6: Final answer
x = 469,047.92
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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.