Finding the Fourth Proportional to 538,331.70, 808,372.35 and 389,615.70
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Solution
The fourth proportional to 538,331.70, 808,372.35 and 389,615.70 is: 585,056.68
Step by Step Solution
- Step 1: Write the proportion equation
538,331.70 : 808,372.35 = 389,615.70 : x - Step 2: Convert to fraction form
538,331.70/808,372.35 = 389,615.70/x - Step 3: Cross multiply
538,331.70x = 808,372.35 × 389,615.70 - Step 4: Simplify right side
538,331.70x = 314,954,559,005.90 - Step 5: Solve for x
x = 314,954,559,005.90/538,331.70 - Step 6: Final answer
x = 585,056.68
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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.