Finding the Fourth Proportional to 528,584.20, 729,446.72 and 286,866.84
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Solution
The fourth proportional to 528,584.20, 729,446.72 and 286,866.84 is: 395,876.52
Step by Step Solution
- Step 1: Write the proportion equation
528,584.20 : 729,446.72 = 286,866.84 : x - Step 2: Convert to fraction form
528,584.20/729,446.72 = 286,866.84/x - Step 3: Cross multiply
528,584.20x = 729,446.72 × 286,866.84 - Step 4: Simplify right side
528,584.20x = 209,254,075,514.77 - Step 5: Solve for x
x = 209,254,075,514.77/528,584.20 - Step 6: Final answer
x = 395,876.52
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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.