Finding the Fourth Proportional to 4,782,612.85, 7,173,924.47 and 1,188,379.80
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Solution
The fourth proportional to 4,782,612.85, 7,173,924.47 and 1,188,379.80 is: 1,782,570.99
Step by Step Solution
- Step 1: Write the proportion equation
4,782,612.85 : 7,173,924.47 = 1,188,379.80 : x - Step 2: Convert to fraction form
4,782,612.85/7,173,924.47 = 1,188,379.80/x - Step 3: Cross multiply
4,782,612.85x = 7,173,924.47 × 1,188,379.80 - Step 4: Simplify right side
4,782,612.85x = 8,525,346,920,931.81 - Step 5: Solve for x
x = 8,525,346,920,931.81/4,782,612.85 - Step 6: Final answer
x = 1,782,570.99
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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.