Finding the Fourth Proportional to 1,567,686.91, 2,163,399.01 and 869,960.74
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Solution
The fourth proportional to 1,567,686.91, 2,163,399.01 and 869,960.74 is: 1,200,540.87
Step by Step Solution
- Step 1: Write the proportion equation
1,567,686.91 : 2,163,399.01 = 869,960.74 : x - Step 2: Convert to fraction form
1,567,686.91/2,163,399.01 = 869,960.74/x - Step 3: Cross multiply
1,567,686.91x = 2,163,399.01 × 869,960.74 - Step 4: Simplify right side
1,567,686.91x = 1,882,072,203,654.87 - Step 5: Solve for x
x = 1,882,072,203,654.87/1,567,686.91 - Step 6: Final answer
x = 1,200,540.87
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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.