Finding the Fourth Proportional to 665,612.80, 998,548.80 and 286,532.80
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Solution
The fourth proportional to 665,612.80, 998,548.80 and 286,532.80 is: 429,854.99
Step by Step Solution
- Step 1: Write the proportion equation
665,612.80 : 998,548.80 = 286,532.80 : x - Step 2: Convert to fraction form
665,612.80/998,548.80 = 286,532.80/x - Step 3: Cross multiply
665,612.80x = 998,548.80 × 286,532.80 - Step 4: Simplify right side
665,612.80x = 286,116,983,600.64 - Step 5: Solve for x
x = 286,116,983,600.64/665,612.80 - Step 6: Final answer
x = 429,854.99
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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.