Finding the Fourth Proportional to 1,991,612.16, 2,987,420.04 and 853,635.87
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Solution
The fourth proportional to 1,991,612.16, 2,987,420.04 and 853,635.87 is: 1,280,454.58
Step by Step Solution
- Step 1: Write the proportion equation
1,991,612.16 : 2,987,420.04 = 853,635.87 : x - Step 2: Convert to fraction form
1,991,612.16/2,987,420.04 = 853,635.87/x - Step 3: Cross multiply
1,991,612.16x = 2,987,420.04 × 853,635.87 - Step 4: Simplify right side
1,991,612.16x = 2,550,168,904,900.84 - Step 5: Solve for x
x = 2,550,168,904,900.84/1,991,612.16 - Step 6: Final answer
x = 1,280,454.58
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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.