Finding the Fourth Proportional to 1,378,933.34, 2,068,400.55 and 432,377.87
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Solution
The fourth proportional to 1,378,933.34, 2,068,400.55 and 432,377.87 is: 648,566.97
Step by Step Solution
- Step 1: Write the proportion equation
1,378,933.34 : 2,068,400.55 = 432,377.87 : x - Step 2: Convert to fraction form
1,378,933.34/2,068,400.55 = 432,377.87/x - Step 3: Cross multiply
1,378,933.34x = 2,068,400.55 × 432,377.87 - Step 4: Simplify right side
1,378,933.34x = 894,330,624,115.83 - Step 5: Solve for x
x = 894,330,624,115.83/1,378,933.34 - Step 6: Final answer
x = 648,566.97
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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.