Finding the Fourth Proportional to 1,041,887.16, 1,438,027.68 and 678,662.91
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Solution
The fourth proportional to 1,041,887.16, 1,438,027.68 and 678,662.91 is: 936,700.33
Step by Step Solution
- Step 1: Write the proportion equation
1,041,887.16 : 1,438,027.68 = 678,662.91 : x - Step 2: Convert to fraction form
1,041,887.16/1,438,027.68 = 678,662.91/x - Step 3: Cross multiply
1,041,887.16x = 1,438,027.68 × 678,662.91 - Step 4: Simplify right side
1,041,887.16x = 975,936,049,969.35 - Step 5: Solve for x
x = 975,936,049,969.35/1,041,887.16 - Step 6: Final answer
x = 936,700.33
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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.