Finding the Fourth Proportional to 667,355.83, 920,953.80 and 361,435.84
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Solution
The fourth proportional to 667,355.83, 920,953.80 and 361,435.84 is: 498,782.95
Step by Step Solution
- Step 1: Write the proportion equation
667,355.83 : 920,953.80 = 361,435.84 : x - Step 2: Convert to fraction form
667,355.83/920,953.80 = 361,435.84/x - Step 3: Cross multiply
667,355.83x = 920,953.80 × 361,435.84 - Step 4: Simplify right side
667,355.83x = 332,865,708,001.81 - Step 5: Solve for x
x = 332,865,708,001.81/667,355.83 - Step 6: Final answer
x = 498,782.95
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.