Finding the Fourth Proportional to 528,600.43, 729,474.05 and 286,885.09
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Solution
The fourth proportional to 528,600.43, 729,474.05 and 286,885.09 is: 395,904.38
Step by Step Solution
- Step 1: Write the proportion equation
528,600.43 : 729,474.05 = 286,885.09 : x - Step 2: Convert to fraction form
528,600.43/729,474.05 = 286,885.09/x - Step 3: Cross multiply
528,600.43x = 729,474.05 × 286,885.09 - Step 4: Simplify right side
528,600.43x = 209,275,227,052.49 - Step 5: Solve for x
x = 209,275,227,052.49/528,600.43 - Step 6: Final answer
x = 395,904.38
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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.