Finding the Fourth Proportional to 612,064.63, 844,670.45 and 340,143.99
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Solution
The fourth proportional to 612,064.63, 844,670.45 and 340,143.99 is: 469,410.51
Step by Step Solution
- Step 1: Write the proportion equation
612,064.63 : 844,670.45 = 340,143.99 : x - Step 2: Convert to fraction form
612,064.63/844,670.45 = 340,143.99/x - Step 3: Cross multiply
612,064.63x = 844,670.45 × 340,143.99 - Step 4: Simplify right side
612,064.63x = 287,309,571,174.02 - Step 5: Solve for x
x = 287,309,571,174.02/612,064.63 - Step 6: Final answer
x = 469,410.51
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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.