Finding the Fourth Proportional to 579,784.20, 869,676.30 and 367,207.80
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Solution
The fourth proportional to 579,784.20, 869,676.30 and 367,207.80 is: 550,811.70
Step by Step Solution
- Step 1: Write the proportion equation
579,784.20 : 869,676.30 = 367,207.80 : x - Step 2: Convert to fraction form
579,784.20/869,676.30 = 367,207.80/x - Step 3: Cross multiply
579,784.20x = 869,676.30 × 367,207.80 - Step 4: Simplify right side
579,784.20x = 319,351,920,835.14 - Step 5: Solve for x
x = 319,351,920,835.14/579,784.20 - Step 6: Final answer
x = 550,811.70
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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.