Finding the Fourth Proportional to 1,174,247.12, 1,620,469.32 and 637,703.12
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Solution
The fourth proportional to 1,174,247.12, 1,620,469.32 and 637,703.12 is: 880,034.81
Step by Step Solution
- Step 1: Write the proportion equation
1,174,247.12 : 1,620,469.32 = 637,703.12 : x - Step 2: Convert to fraction form
1,174,247.12/1,620,469.32 = 637,703.12/x - Step 3: Cross multiply
1,174,247.12x = 1,620,469.32 × 637,703.12 - Step 4: Simplify right side
1,174,247.12x = 1,033,378,341,228.28 - Step 5: Solve for x
x = 1,033,378,341,228.28/1,174,247.12 - Step 6: Final answer
x = 880,034.81
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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.