Finding the Fourth Proportional to 528,643.84, 729,539.36 and 299,201.12
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Solution
The fourth proportional to 528,643.84, 729,539.36 and 299,201.12 is: 412,903.69
Step by Step Solution
- Step 1: Write the proportion equation
528,643.84 : 729,539.36 = 299,201.12 : x - Step 2: Convert to fraction form
528,643.84/729,539.36 = 299,201.12/x - Step 3: Cross multiply
528,643.84x = 729,539.36 × 299,201.12 - Step 4: Simplify right side
528,643.84x = 218,278,993,596.08 - Step 5: Solve for x
x = 218,278,993,596.08/528,643.84 - Step 6: Final answer
x = 412,903.69
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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.