Finding the Fourth Proportional to 455,139.10, 679,247.84 and 404,695.05
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Solution
The fourth proportional to 455,139.10, 679,247.84 and 404,695.05 is: 603,965.33
Step by Step Solution
- Step 1: Write the proportion equation
455,139.10 : 679,247.84 = 404,695.05 : x - Step 2: Convert to fraction form
455,139.10/679,247.84 = 404,695.05/x - Step 3: Cross multiply
455,139.10x = 679,247.84 × 404,695.05 - Step 4: Simplify right side
455,139.10x = 274,888,238,571.19 - Step 5: Solve for x
x = 274,888,238,571.19/455,139.10 - Step 6: Final answer
x = 603,965.33
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.