Finding the Fourth Proportional to 1,174,145.80, 1,620,293.80 and 690,742.08
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Solution
The fourth proportional to 1,174,145.80, 1,620,293.80 and 690,742.08 is: 953,207.95
Step by Step Solution
- Step 1: Write the proportion equation
1,174,145.80 : 1,620,293.80 = 690,742.08 : x - Step 2: Convert to fraction form
1,174,145.80/1,620,293.80 = 690,742.08/x - Step 3: Cross multiply
1,174,145.80x = 1,620,293.80 × 690,742.08 - Step 4: Simplify right side
1,174,145.80x = 1,119,205,106,762.95 - Step 5: Solve for x
x = 1,119,205,106,762.95/1,174,145.80 - Step 6: Final answer
x = 953,207.95
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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.