Finding the Fourth Proportional to 391,005.36, 589,438.08 and 364,965.36
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Solution
The fourth proportional to 391,005.36, 589,438.08 and 364,965.36 is: 550,182.95
Step by Step Solution
- Step 1: Write the proportion equation
391,005.36 : 589,438.08 = 364,965.36 : x - Step 2: Convert to fraction form
391,005.36/589,438.08 = 364,965.36/x - Step 3: Cross multiply
391,005.36x = 589,438.08 × 364,965.36 - Step 4: Simplify right side
391,005.36x = 215,124,481,064.91 - Step 5: Solve for x
x = 215,124,481,064.91/391,005.36 - Step 6: Final answer
x = 550,182.95
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.