Finding the Fourth Proportional to 1,232,379.13, 1,700,651.86 and 688,519.00
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Solution
The fourth proportional to 1,232,379.13, 1,700,651.86 and 688,519.00 is: 950,138.72
Step by Step Solution
- Step 1: Write the proportion equation
1,232,379.13 : 1,700,651.86 = 688,519.00 : x - Step 2: Convert to fraction form
1,232,379.13/1,700,651.86 = 688,519.00/x - Step 3: Cross multiply
1,232,379.13x = 1,700,651.86 × 688,519.00 - Step 4: Simplify right side
1,232,379.13x = 1,170,931,121,447.26 - Step 5: Solve for x
x = 1,170,931,121,447.26/1,232,379.13 - Step 6: Final answer
x = 950,138.72
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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.