Finding the Fourth Proportional to 713,249.41, 984,284.41 and 390,961.70
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Solution
The fourth proportional to 713,249.41, 984,284.41 and 390,961.70 is: 539,527.27
Step by Step Solution
- Step 1: Write the proportion equation
713,249.41 : 984,284.41 = 390,961.70 : x - Step 2: Convert to fraction form
713,249.41/984,284.41 = 390,961.70/x - Step 3: Cross multiply
713,249.41x = 984,284.41 × 390,961.70 - Step 4: Simplify right side
713,249.41x = 384,817,506,217.10 - Step 5: Solve for x
x = 384,817,506,217.10/713,249.41 - Step 6: Final answer
x = 539,527.27
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1.5x scale
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.