Finding the Fourth Proportional to 528,101.49, 728,780.22 and 286,383.99
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Solution
The fourth proportional to 528,101.49, 728,780.22 and 286,383.99 is: 395,210.00
Step by Step Solution
- Step 1: Write the proportion equation
528,101.49 : 728,780.22 = 286,383.99 : x - Step 2: Convert to fraction form
528,101.49/728,780.22 = 286,383.99/x - Step 3: Cross multiply
528,101.49x = 728,780.22 × 286,383.99 - Step 4: Simplify right side
528,101.49x = 208,710,987,236.68 - Step 5: Solve for x
x = 208,710,987,236.68/528,101.49 - Step 6: Final answer
x = 395,210.00
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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.