Finding the Fourth Proportional to 2,168,632.68, 2,992,720.08 and 1,201,778.88
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Solution
The fourth proportional to 2,168,632.68, 2,992,720.08 and 1,201,778.88 is: 1,658,458.72
Step by Step Solution
- Step 1: Write the proportion equation
2,168,632.68 : 2,992,720.08 = 1,201,778.88 : x - Step 2: Convert to fraction form
2,168,632.68/2,992,720.08 = 1,201,778.88/x - Step 3: Cross multiply
2,168,632.68x = 2,992,720.08 × 1,201,778.88 - Step 4: Simplify right side
2,168,632.68x = 3,596,587,785,895.91 - Step 5: Solve for x
x = 3,596,587,785,895.91/2,168,632.68 - Step 6: Final answer
x = 1,658,458.72
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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.