Finding the Fourth Proportional to 638,391.74, 880,986.59 and 351,922.08
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Solution
The fourth proportional to 638,391.74, 880,986.59 and 351,922.08 is: 485,655.77
Step by Step Solution
- Step 1: Write the proportion equation
638,391.74 : 880,986.59 = 351,922.08 : x - Step 2: Convert to fraction form
638,391.74/880,986.59 = 351,922.08/x - Step 3: Cross multiply
638,391.74x = 880,986.59 × 351,922.08 - Step 4: Simplify right side
638,391.74x = 310,038,633,204.91 - Step 5: Solve for x
x = 310,038,633,204.91/638,391.74 - Step 6: Final answer
x = 485,655.77
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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.