Finding the Fourth Proportional to 391,613.94, 587,683.35 and 251,470.98
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Solution
The fourth proportional to 391,613.94, 587,683.35 and 251,470.98 is: 377,374.99
Step by Step Solution
- Step 1: Write the proportion equation
391,613.94 : 587,683.35 = 251,470.98 : x - Step 2: Convert to fraction form
391,613.94/587,683.35 = 251,470.98/x - Step 3: Cross multiply
391,613.94x = 587,683.35 × 251,470.98 - Step 4: Simplify right side
391,613.94x = 147,785,307,954.18 - Step 5: Solve for x
x = 147,785,307,954.18/391,613.94 - Step 6: Final answer
x = 377,374.99
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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.