Finding the Fourth Proportional to 685,686.94, 1,024,360.64 and 443,830.66
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Solution
The fourth proportional to 685,686.94, 1,024,360.64 and 443,830.66 is: 663,046.99
Step by Step Solution
- Step 1: Write the proportion equation
685,686.94 : 1,024,360.64 = 443,830.66 : x - Step 2: Convert to fraction form
685,686.94/1,024,360.64 = 443,830.66/x - Step 3: Cross multiply
685,686.94x = 1,024,360.64 × 443,830.66 - Step 4: Simplify right side
685,686.94x = 454,642,658,929.22 - Step 5: Solve for x
x = 454,642,658,929.22/685,686.94 - Step 6: Final answer
x = 663,046.99
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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.