Finding the Fourth Proportional to 665,615.80, 998,553.30 and 286,535.80
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Solution
The fourth proportional to 665,615.80, 998,553.30 and 286,535.80 is: 429,859.49
Step by Step Solution
- Step 1: Write the proportion equation
665,615.80 : 998,553.30 = 286,535.80 : x - Step 2: Convert to fraction form
665,615.80/998,553.30 = 286,535.80/x - Step 3: Cross multiply
665,615.80x = 998,553.30 × 286,535.80 - Step 4: Simplify right side
665,615.80x = 286,121,268,658.14 - Step 5: Solve for x
x = 286,121,268,658.14/665,615.80 - Step 6: Final answer
x = 429,859.49
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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.