Finding the Fourth Proportional to 528,043.26, 728,825.73 and 313,307.94
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Solution
The fourth proportional to 528,043.26, 728,825.73 and 313,307.94 is: 432,439.74
Step by Step Solution
- Step 1: Write the proportion equation
528,043.26 : 728,825.73 = 313,307.94 : x - Step 2: Convert to fraction form
528,043.26/728,825.73 = 313,307.94/x - Step 3: Cross multiply
528,043.26x = 728,825.73 × 313,307.94 - Step 4: Simplify right side
528,043.26x = 228,346,888,085.30 - Step 5: Solve for x
x = 228,346,888,085.30/528,043.26 - Step 6: Final answer
x = 432,439.74
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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.