Finding the Fourth Proportional to 389,628.42, 583,972.35 and 189,649.14
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Solution
The fourth proportional to 389,628.42, 583,972.35 and 189,649.14 is: 284,244.80
Step by Step Solution
- Step 1: Write the proportion equation
389,628.42 : 583,972.35 = 189,649.14 : x - Step 2: Convert to fraction form
389,628.42/583,972.35 = 189,649.14/x - Step 3: Cross multiply
389,628.42x = 583,972.35 × 189,649.14 - Step 4: Simplify right side
389,628.42x = 110,749,853,961.28 - Step 5: Solve for x
x = 110,749,853,961.28/389,628.42 - Step 6: Final answer
x = 284,244.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.