Finding the Fourth Proportional to 1,974,036.80, 2,724,331.68 and 1,114,806.08
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Solution
The fourth proportional to 1,974,036.80, 2,724,331.68 and 1,114,806.08 is: 1,538,523.25
Step by Step Solution
- Step 1: Write the proportion equation
1,974,036.80 : 2,724,331.68 = 1,114,806.08 : x - Step 2: Convert to fraction form
1,974,036.80/2,724,331.68 = 1,114,806.08/x - Step 3: Cross multiply
1,974,036.80x = 2,724,331.68 × 1,114,806.08 - Step 4: Simplify right side
1,974,036.80x = 3,037,101,520,800.62 - Step 5: Solve for x
x = 3,037,101,520,800.62/1,974,036.80 - Step 6: Final answer
x = 1,538,523.25
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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.