Finding the Fourth Proportional to 445,150.81, 668,393.25 and 385,363.70
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Solution
The fourth proportional to 445,150.81, 668,393.25 and 385,363.70 is: 578,622.99
Step by Step Solution
- Step 1: Write the proportion equation
445,150.81 : 668,393.25 = 385,363.70 : x - Step 2: Convert to fraction form
445,150.81/668,393.25 = 385,363.70/x - Step 3: Cross multiply
445,150.81x = 668,393.25 × 385,363.70 - Step 4: Simplify right side
445,150.81x = 257,574,490,606.24 - Step 5: Solve for x
x = 257,574,490,606.24/445,150.81 - Step 6: Final answer
x = 578,622.99
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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.