Finding the Fourth Proportional to 528,546.85, 729,395.12 and 286,829.42
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Solution
The fourth proportional to 528,546.85, 729,395.12 and 286,829.42 is: 395,824.84
Step by Step Solution
- Step 1: Write the proportion equation
528,546.85 : 729,395.12 = 286,829.42 : x - Step 2: Convert to fraction form
528,546.85/729,395.12 = 286,829.42/x - Step 3: Cross multiply
528,546.85x = 729,395.12 × 286,829.42 - Step 4: Simplify right side
528,546.85x = 209,211,974,139.31 - Step 5: Solve for x
x = 209,211,974,139.31/528,546.85 - Step 6: Final answer
x = 395,824.84
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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.