Finding the Fourth Proportional to 2,989,763.80, 4,484,645.70 and 1,192,924.60
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Solution
The fourth proportional to 2,989,763.80, 4,484,645.70 and 1,192,924.60 is: 1,789,386.90
Step by Step Solution
- Step 1: Write the proportion equation
2,989,763.80 : 4,484,645.70 = 1,192,924.60 : x - Step 2: Convert to fraction form
2,989,763.80/4,484,645.70 = 1,192,924.60/x - Step 3: Cross multiply
2,989,763.80x = 4,484,645.70 × 1,192,924.60 - Step 4: Simplify right side
2,989,763.80x = 5,349,844,177,814.22 - Step 5: Solve for x
x = 5,349,844,177,814.22/2,989,763.80 - Step 6: Final answer
x = 1,789,386.90
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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.