Finding the Fourth Proportional to 469,729.59, 648,394.98 and 278,742.99
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Solution
The fourth proportional to 469,729.59, 648,394.98 and 278,742.99 is: 384,765.11
Step by Step Solution
- Step 1: Write the proportion equation
469,729.59 : 648,394.98 = 278,742.99 : x - Step 2: Convert to fraction form
469,729.59/648,394.98 = 278,742.99/x - Step 3: Cross multiply
469,729.59x = 648,394.98 × 278,742.99 - Step 4: Simplify right side
469,729.59x = 180,735,555,426.19 - Step 5: Solve for x
x = 180,735,555,426.19/469,729.59 - Step 6: Final answer
x = 384,765.11
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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.