Finding the Fourth Proportional to 920,460.40, 1,380,784.80 and 352,318.84
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Solution
The fourth proportional to 920,460.40, 1,380,784.80 and 352,318.84 is: 528,514.32
Step by Step Solution
- Step 1: Write the proportion equation
920,460.40 : 1,380,784.80 = 352,318.84 : x - Step 2: Convert to fraction form
920,460.40/1,380,784.80 = 352,318.84/x - Step 3: Cross multiply
920,460.40x = 1,380,784.80 × 352,318.84 - Step 4: Simplify right side
920,460.40x = 486,476,499,025.63 - Step 5: Solve for x
x = 486,476,499,025.63/920,460.40 - Step 6: Final answer
x = 528,514.32
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1.5x scale
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.