Finding the Fourth Proportional to 809,416.30, 1,116,996.12 and 446,840.65
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Solution
The fourth proportional to 809,416.30, 1,116,996.12 and 446,840.65 is: 616,640.99
Step by Step Solution
- Step 1: Write the proportion equation
809,416.30 : 1,116,996.12 = 446,840.65 : x - Step 2: Convert to fraction form
809,416.30/1,116,996.12 = 446,840.65/x - Step 3: Cross multiply
809,416.30x = 1,116,996.12 × 446,840.65 - Step 4: Simplify right side
809,416.30x = 499,119,272,308.28 - Step 5: Solve for x
x = 499,119,272,308.28/809,416.30 - Step 6: Final answer
x = 616,640.99
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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.