Finding the Fourth Proportional to 681,472.26, 939,955.05 and 578,790.18
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Solution
The fourth proportional to 681,472.26, 939,955.05 and 578,790.18 is: 798,325.60
Step by Step Solution
- Step 1: Write the proportion equation
681,472.26 : 939,955.05 = 578,790.18 : x - Step 2: Convert to fraction form
681,472.26/939,955.05 = 578,790.18/x - Step 3: Cross multiply
681,472.26x = 939,955.05 × 578,790.18 - Step 4: Simplify right side
681,472.26x = 544,036,752,581.41 - Step 5: Solve for x
x = 544,036,752,581.41/681,472.26 - Step 6: Final answer
x = 798,325.60
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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.