Finding the Fourth Proportional to 442,712.13, 663,564.84 and 389,299.44
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Solution
The fourth proportional to 442,712.13, 663,564.84 and 389,299.44 is: 583,506.53
Step by Step Solution
- Step 1: Write the proportion equation
442,712.13 : 663,564.84 = 389,299.44 : x - Step 2: Convert to fraction form
442,712.13/663,564.84 = 389,299.44/x - Step 3: Cross multiply
442,712.13x = 663,564.84 × 389,299.44 - Step 4: Simplify right side
442,712.13x = 258,325,420,615.69 - Step 5: Solve for x
x = 258,325,420,615.69/442,712.13 - Step 6: Final answer
x = 583,506.53
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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.