Finding the Fourth Proportional to 528,586.63, 729,449.92 and 286,869.14
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Solution
The fourth proportional to 528,586.63, 729,449.92 and 286,869.14 is: 395,879.62
Step by Step Solution
- Step 1: Write the proportion equation
528,586.63 : 729,449.92 = 286,869.14 : x - Step 2: Convert to fraction form
528,586.63/729,449.92 = 286,869.14/x - Step 3: Cross multiply
528,586.63x = 729,449.92 × 286,869.14 - Step 4: Simplify right side
528,586.63x = 209,256,671,223.47 - Step 5: Solve for x
x = 209,256,671,223.47/528,586.63 - Step 6: Final answer
x = 395,879.62
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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.