Finding the Fourth Proportional to 718,225.87, 1,077,757.95 and 398,645.94
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Solution
The fourth proportional to 718,225.87, 1,077,757.95 and 398,645.94 is: 598,201.55
Step by Step Solution
- Step 1: Write the proportion equation
718,225.87 : 1,077,757.95 = 398,645.94 : x - Step 2: Convert to fraction form
718,225.87/1,077,757.95 = 398,645.94/x - Step 3: Cross multiply
718,225.87x = 1,077,757.95 × 398,645.94 - Step 4: Simplify right side
718,225.87x = 429,643,831,070.22 - Step 5: Solve for x
x = 429,643,831,070.22/718,225.87 - Step 6: Final answer
x = 598,201.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.