Finding the Fourth Proportional to 943,753.68, 1,302,664.68 and 642,122.64
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Solution
The fourth proportional to 943,753.68, 1,302,664.68 and 642,122.64 is: 886,322.88
Step by Step Solution
- Step 1: Write the proportion equation
943,753.68 : 1,302,664.68 = 642,122.64 : x - Step 2: Convert to fraction form
943,753.68/1,302,664.68 = 642,122.64/x - Step 3: Cross multiply
943,753.68x = 1,302,664.68 × 642,122.64 - Step 4: Simplify right side
943,753.68x = 836,470,483,356.36 - Step 5: Solve for x
x = 836,470,483,356.36/943,753.68 - Step 6: Final answer
x = 886,322.88
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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.