Finding the Fourth Proportional to 1,945,289.86, 2,684,489.76 and 1,129,694.08
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Solution
The fourth proportional to 1,945,289.86, 2,684,489.76 and 1,129,694.08 is: 1,558,971.88
Step by Step Solution
- Step 1: Write the proportion equation
1,945,289.86 : 2,684,489.76 = 1,129,694.08 : x - Step 2: Convert to fraction form
1,945,289.86/2,684,489.76 = 1,129,694.08/x - Step 3: Cross multiply
1,945,289.86x = 2,684,489.76 × 1,129,694.08 - Step 4: Simplify right side
1,945,289.86x = 3,032,652,189,692.62 - Step 5: Solve for x
x = 3,032,652,189,692.62/1,945,289.86 - Step 6: Final answer
x = 1,558,971.88
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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.