Finding the Fourth Proportional to 391,372.04, 587,283.82 and 211,457.99
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Solution
The fourth proportional to 391,372.04, 587,283.82 and 211,457.99 is: 317,308.96
Step by Step Solution
- Step 1: Write the proportion equation
391,372.04 : 587,283.82 = 211,457.99 : x - Step 2: Convert to fraction form
391,372.04/587,283.82 = 211,457.99/x - Step 3: Cross multiply
391,372.04x = 587,283.82 × 211,457.99 - Step 4: Simplify right side
391,372.04x = 124,185,854,930.29 - Step 5: Solve for x
x = 124,185,854,930.29/391,372.04 - Step 6: Final answer
x = 317,308.96
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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.