Finding the Fourth Proportional to 716,859.40, 989,258.14 and 394,562.56
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Solution
The fourth proportional to 716,859.40, 989,258.14 and 394,562.56 is: 544,492.02
Step by Step Solution
- Step 1: Write the proportion equation
716,859.40 : 989,258.14 = 394,562.56 : x - Step 2: Convert to fraction form
716,859.40/989,258.14 = 394,562.56/x - Step 3: Cross multiply
716,859.40x = 989,258.14 × 394,562.56 - Step 4: Simplify right side
716,859.40x = 390,324,224,219.24 - Step 5: Solve for x
x = 390,324,224,219.24/716,859.40 - Step 6: Final answer
x = 544,492.02
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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.