Finding the Fourth Proportional to 809,416.98, 1,116,938.16 and 446,782.68
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Solution
The fourth proportional to 809,416.98, 1,116,938.16 and 446,782.68 is: 616,528.49
Step by Step Solution
- Step 1: Write the proportion equation
809,416.98 : 1,116,938.16 = 446,782.68 : x - Step 2: Convert to fraction form
809,416.98/1,116,938.16 = 446,782.68/x - Step 3: Cross multiply
809,416.98x = 1,116,938.16 × 446,782.68 - Step 4: Simplify right side
809,416.98x = 499,028,624,519.07 - Step 5: Solve for x
x = 499,028,624,519.07/809,416.98 - Step 6: Final answer
x = 616,528.49
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1.5x scale
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.