Finding the Fourth Proportional to 1,078,756.84, 1,489,244.18 and 788,041.98
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Solution
The fourth proportional to 1,078,756.84, 1,489,244.18 and 788,041.98 is: 1,087,906.83
Step by Step Solution
- Step 1: Write the proportion equation
1,078,756.84 : 1,489,244.18 = 788,041.98 : x - Step 2: Convert to fraction form
1,078,756.84/1,489,244.18 = 788,041.98/x - Step 3: Cross multiply
1,078,756.84x = 1,489,244.18 × 788,041.98 - Step 4: Simplify right side
1,078,756.84x = 1,173,586,932,310.68 - Step 5: Solve for x
x = 1,173,586,932,310.68/1,078,756.84 - Step 6: Final answer
x = 1,087,906.83
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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.