Finding the Fourth Proportional to 391,509.84, 587,265.12 and 96,021.84
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Solution
The fourth proportional to 391,509.84, 587,265.12 and 96,021.84 is: 144,032.85
Step by Step Solution
- Step 1: Write the proportion equation
391,509.84 : 587,265.12 = 96,021.84 : x - Step 2: Convert to fraction form
391,509.84/587,265.12 = 96,021.84/x - Step 3: Cross multiply
391,509.84x = 587,265.12 × 96,021.84 - Step 4: Simplify right side
391,509.84x = 56,390,277,390.22 - Step 5: Solve for x
x = 56,390,277,390.22/391,509.84 - Step 6: Final answer
x = 144,032.85
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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.