Finding the Fourth Proportional to 407,772.70, 611,659.05 and 401,867.80
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Solution
The fourth proportional to 407,772.70, 611,659.05 and 401,867.80 is: 602,801.70
Step by Step Solution
- Step 1: Write the proportion equation
407,772.70 : 611,659.05 = 401,867.80 : x - Step 2: Convert to fraction form
407,772.70/611,659.05 = 401,867.80/x - Step 3: Cross multiply
407,772.70x = 611,659.05 × 401,867.80 - Step 4: Simplify right side
407,772.70x = 245,806,076,773.59 - Step 5: Solve for x
x = 245,806,076,773.59/407,772.70 - Step 6: Final answer
x = 602,801.70
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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.