Finding the Fourth Proportional to 665,228.40, 998,553.03 and 286,336.80
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Solution
The fourth proportional to 665,228.40, 998,553.03 and 286,336.80 is: 429,810.99
Step by Step Solution
- Step 1: Write the proportion equation
665,228.40 : 998,553.03 = 286,336.80 : x - Step 2: Convert to fraction form
665,228.40/998,553.03 = 286,336.80/x - Step 3: Cross multiply
665,228.40x = 998,553.03 × 286,336.80 - Step 4: Simplify right side
665,228.40x = 285,922,479,240.50 - Step 5: Solve for x
x = 285,922,479,240.50/665,228.40 - Step 6: Final answer
x = 429,810.99
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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.