Finding the Fourth Proportional to 3,116,988.13, 4,301,402.87 and 1,740,355.28
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Solution
The fourth proportional to 3,116,988.13, 4,301,402.87 and 1,740,355.28 is: 2,401,667.53
Step by Step Solution
- Step 1: Write the proportion equation
3,116,988.13 : 4,301,402.87 = 1,740,355.28 : x - Step 2: Convert to fraction form
3,116,988.13/4,301,402.87 = 1,740,355.28/x - Step 3: Cross multiply
3,116,988.13x = 4,301,402.87 × 1,740,355.28 - Step 4: Simplify right side
3,116,988.13x = 7,485,969,196,211.65 - Step 5: Solve for x
x = 7,485,969,196,211.65/3,116,988.13 - Step 6: Final answer
x = 2,401,667.53
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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.