Finding the Fourth Proportional to 528,592.20, 729,457.74 and 286,874.82
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Solution
The fourth proportional to 528,592.20, 729,457.74 and 286,874.82 is: 395,887.53
Step by Step Solution
- Step 1: Write the proportion equation
528,592.20 : 729,457.74 = 286,874.82 : x - Step 2: Convert to fraction form
528,592.20/729,457.74 = 286,874.82/x - Step 3: Cross multiply
528,592.20x = 729,457.74 × 286,874.82 - Step 4: Simplify right side
528,592.20x = 209,263,057,860.11 - Step 5: Solve for x
x = 209,263,057,860.11/528,592.20 - Step 6: Final answer
x = 395,887.53
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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.