Finding the Fourth Proportional to 718,256.97, 991,284.35 and 412,429.05
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Solution
The fourth proportional to 718,256.97, 991,284.35 and 412,429.05 is: 569,203.61
Step by Step Solution
- Step 1: Write the proportion equation
718,256.97 : 991,284.35 = 412,429.05 : x - Step 2: Convert to fraction form
718,256.97/991,284.35 = 412,429.05/x - Step 3: Cross multiply
718,256.97x = 991,284.35 × 412,429.05 - Step 4: Simplify right side
718,256.97x = 408,834,460,688.22 - Step 5: Solve for x
x = 408,834,460,688.22/718,256.97 - Step 6: Final answer
x = 569,203.61
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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.