Finding the Fourth Proportional to 877,855.12, 1,211,436.32 and 490,670.02
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Solution
The fourth proportional to 877,855.12, 1,211,436.32 and 490,670.02 is: 677,122.53
Step by Step Solution
- Step 1: Write the proportion equation
877,855.12 : 1,211,436.32 = 490,670.02 : x - Step 2: Convert to fraction form
877,855.12/1,211,436.32 = 490,670.02/x - Step 3: Cross multiply
877,855.12x = 1,211,436.32 × 490,670.02 - Step 4: Simplify right side
877,855.12x = 594,415,483,363.13 - Step 5: Solve for x
x = 594,415,483,363.13/877,855.12 - Step 6: Final answer
x = 677,122.53
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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.