Finding the Fourth Proportional to 1,974,040.80, 2,724,337.20 and 1,114,810.08
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Solution
The fourth proportional to 1,974,040.80, 2,724,337.20 and 1,114,810.08 is: 1,538,528.77
Step by Step Solution
- Step 1: Write the proportion equation
1,974,040.80 : 2,724,337.20 = 1,114,810.08 : x - Step 2: Convert to fraction form
1,974,040.80/2,724,337.20 = 1,114,810.08/x - Step 3: Cross multiply
1,974,040.80x = 2,724,337.20 × 1,114,810.08 - Step 4: Simplify right side
1,974,040.80x = 3,037,118,571,878.98 - Step 5: Solve for x
x = 3,037,118,571,878.98/1,974,040.80 - Step 6: Final answer
x = 1,538,528.77
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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.