Finding the Fourth Proportional to 519,306.13, 716,644.62 and 280,842.13
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Solution
The fourth proportional to 519,306.13, 716,644.62 and 280,842.13 is: 387,563.30
Step by Step Solution
- Step 1: Write the proportion equation
519,306.13 : 716,644.62 = 280,842.13 : x - Step 2: Convert to fraction form
519,306.13/716,644.62 = 280,842.13/x - Step 3: Cross multiply
519,306.13x = 716,644.62 × 280,842.13 - Step 4: Simplify right side
519,306.13x = 201,263,996,546.41 - Step 5: Solve for x
x = 201,263,996,546.41/519,306.13 - Step 6: Final answer
x = 387,563.30
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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.