Finding the Fourth Proportional to 667,464.20, 921,101.52 and 361,543.91
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Solution
The fourth proportional to 667,464.20, 921,101.52 and 361,543.91 is: 498,931.09
Step by Step Solution
- Step 1: Write the proportion equation
667,464.20 : 921,101.52 = 361,543.91 : x - Step 2: Convert to fraction form
667,464.20/921,101.52 = 361,543.91/x - Step 3: Cross multiply
667,464.20x = 921,101.52 × 361,543.91 - Step 4: Simplify right side
667,464.20x = 333,018,641,798.03 - Step 5: Solve for x
x = 333,018,641,798.03/667,464.20 - Step 6: Final answer
x = 498,931.09
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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.