Finding the Fourth Proportional to 1,620,369.76, 2,430,818.16 and 498,439.84
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Solution
The fourth proportional to 1,620,369.76, 2,430,818.16 and 498,439.84 is: 747,740.82
Step by Step Solution
- Step 1: Write the proportion equation
1,620,369.76 : 2,430,818.16 = 498,439.84 : x - Step 2: Convert to fraction form
1,620,369.76/2,430,818.16 = 498,439.84/x - Step 3: Cross multiply
1,620,369.76x = 2,430,818.16 × 498,439.84 - Step 4: Simplify right side
1,620,369.76x = 1,211,616,614,739.49 - Step 5: Solve for x
x = 1,211,616,614,739.49/1,620,369.76 - Step 6: Final answer
x = 747,740.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.