Finding the Fourth Proportional to 391,918.74, 587,771.32 and 107,541.87
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Solution
The fourth proportional to 391,918.74, 587,771.32 and 107,541.87 is: 161,283.50
Step by Step Solution
- Step 1: Write the proportion equation
391,918.74 : 587,771.32 = 107,541.87 : x - Step 2: Convert to fraction form
391,918.74/587,771.32 = 107,541.87/x - Step 3: Cross multiply
391,918.74x = 587,771.32 × 107,541.87 - Step 4: Simplify right side
391,918.74x = 63,210,023,946.31 - Step 5: Solve for x
x = 63,210,023,946.31/391,918.74 - Step 6: Final answer
x = 161,283.50
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.