Finding the Fourth Proportional to 716,853.92, 989,250.57 and 394,557.08
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Solution
The fourth proportional to 716,853.92, 989,250.57 and 394,557.08 is: 544,484.45
Step by Step Solution
- Step 1: Write the proportion equation
716,853.92 : 989,250.57 = 394,557.08 : x - Step 2: Convert to fraction form
716,853.92/989,250.57 = 394,557.08/x - Step 3: Cross multiply
716,853.92x = 989,250.57 × 394,557.08 - Step 4: Simplify right side
716,853.92x = 390,315,811,341.28 - Step 5: Solve for x
x = 390,315,811,341.28/716,853.92 - Step 6: Final answer
x = 544,484.45
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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.