Finding the Fourth Proportional to 3,985,763.09, 5,979,593.75 and 1,290,088.76
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Solution
The fourth proportional to 3,985,763.09, 5,979,593.75 and 1,290,088.76 is: 1,935,440.34
Step by Step Solution
- Step 1: Write the proportion equation
3,985,763.09 : 5,979,593.75 = 1,290,088.76 : x - Step 2: Convert to fraction form
3,985,763.09/5,979,593.75 = 1,290,088.76/x - Step 3: Cross multiply
3,985,763.09x = 5,979,593.75 × 1,290,088.76 - Step 4: Simplify right side
3,985,763.09x = 7,714,206,649,892.84 - Step 5: Solve for x
x = 7,714,206,649,892.84/3,985,763.09 - Step 6: Final answer
x = 1,935,440.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.