Finding the Fourth Proportional to 572,840.70, 790,545.18 and 318,191.88
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Solution
The fourth proportional to 572,840.70, 790,545.18 and 318,191.88 is: 439,118.69
Step by Step Solution
- Step 1: Write the proportion equation
572,840.70 : 790,545.18 = 318,191.88 : x - Step 2: Convert to fraction form
572,840.70/790,545.18 = 318,191.88/x - Step 3: Cross multiply
572,840.70x = 790,545.18 × 318,191.88 - Step 4: Simplify right side
572,840.70x = 251,545,057,049.14 - Step 5: Solve for x
x = 251,545,057,049.14/572,840.70 - Step 6: Final answer
x = 439,118.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.