Finding the Fourth Proportional to 665,494.98, 998,908.29 and 310,758.72
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Solution
The fourth proportional to 665,494.98, 998,908.29 and 310,758.72 is: 466,448.99
Step by Step Solution
- Step 1: Write the proportion equation
665,494.98 : 998,908.29 = 310,758.72 : x - Step 2: Convert to fraction form
665,494.98/998,908.29 = 310,758.72/x - Step 3: Cross multiply
665,494.98x = 998,908.29 × 310,758.72 - Step 4: Simplify right side
665,494.98x = 310,419,461,597.79 - Step 5: Solve for x
x = 310,419,461,597.79/665,494.98 - Step 6: Final answer
x = 466,448.99
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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.