Finding the Fourth Proportional to 528,542.22, 729,340.11 and 313,645.26
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Solution
The fourth proportional to 528,542.22, 729,340.11 and 313,645.26 is: 432,801.88
Step by Step Solution
- Step 1: Write the proportion equation
528,542.22 : 729,340.11 = 313,645.26 : x - Step 2: Convert to fraction form
528,542.22/729,340.11 = 313,645.26/x - Step 3: Cross multiply
528,542.22x = 729,340.11 × 313,645.26 - Step 4: Simplify right side
528,542.22x = 228,754,068,429.38 - Step 5: Solve for x
x = 228,754,068,429.38/528,542.22 - Step 6: Final answer
x = 432,801.88
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1.5x scale
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.