Finding the Fourth Proportional to 528,552.33, 729,407.57 and 286,836.99
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Solution
The fourth proportional to 528,552.33, 729,407.57 and 286,836.99 is: 395,837.95
Step by Step Solution
- Step 1: Write the proportion equation
528,552.33 : 729,407.57 = 286,836.99 : x - Step 2: Convert to fraction form
528,552.33/729,407.57 = 286,836.99/x - Step 3: Cross multiply
528,552.33x = 729,407.57 × 286,836.99 - Step 4: Simplify right side
528,552.33x = 209,221,070,427.83 - Step 5: Solve for x
x = 209,221,070,427.83/528,552.33 - Step 6: Final answer
x = 395,837.95
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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.