Finding the Fourth Proportional to 489,205.66, 675,135.76 and 282,482.78
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Solution
The fourth proportional to 489,205.66, 675,135.76 and 282,482.78 is: 389,844.68
Step by Step Solution
- Step 1: Write the proportion equation
489,205.66 : 675,135.76 = 282,482.78 : x - Step 2: Convert to fraction form
489,205.66/675,135.76 = 282,482.78/x - Step 3: Cross multiply
489,205.66x = 675,135.76 × 282,482.78 - Step 4: Simplify right side
489,205.66x = 190,714,226,362.21 - Step 5: Solve for x
x = 190,714,226,362.21/489,205.66 - Step 6: Final answer
x = 389,844.68
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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.