Finding the Fourth Proportional to 857,860.17, 1,285,953.35 and 408,460.29
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Solution
The fourth proportional to 857,860.17, 1,285,953.35 and 408,460.29 is: 612,291.95
Step by Step Solution
- Step 1: Write the proportion equation
857,860.17 : 1,285,953.35 = 408,460.29 : x - Step 2: Convert to fraction form
857,860.17/1,285,953.35 = 408,460.29/x - Step 3: Cross multiply
857,860.17x = 1,285,953.35 × 408,460.29 - Step 4: Simplify right side
857,860.17x = 525,260,876,225.17 - Step 5: Solve for x
x = 525,260,876,225.17/857,860.17 - Step 6: Final answer
x = 612,291.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.