Finding the Fourth Proportional to 420,883.29, 580,634.00 and 257,547.57
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Solution
The fourth proportional to 420,883.29, 580,634.00 and 257,547.57 is: 355,302.48
Step by Step Solution
- Step 1: Write the proportion equation
420,883.29 : 580,634.00 = 257,547.57 : x - Step 2: Convert to fraction form
420,883.29/580,634.00 = 257,547.57/x - Step 3: Cross multiply
420,883.29x = 580,634.00 × 257,547.57 - Step 4: Simplify right side
420,883.29x = 149,540,877,434.82 - Step 5: Solve for x
x = 149,540,877,434.82/420,883.29 - Step 6: Final answer
x = 355,302.48
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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.