Finding the Fourth Proportional to 753,885.49, 1,040,370.01 and 409,721.44
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Solution
The fourth proportional to 753,885.49, 1,040,370.01 and 409,721.44 is: 565,419.95
Step by Step Solution
- Step 1: Write the proportion equation
753,885.49 : 1,040,370.01 = 409,721.44 : x - Step 2: Convert to fraction form
753,885.49/1,040,370.01 = 409,721.44/x - Step 3: Cross multiply
753,885.49x = 1,040,370.01 × 409,721.44 - Step 4: Simplify right side
753,885.49x = 426,261,898,630.01 - Step 5: Solve for x
x = 426,261,898,630.01/753,885.49 - Step 6: Final answer
x = 565,419.95
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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.