Finding the Fourth Proportional to 809,343.70, 1,214,015.55 and 248,305.30
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Solution
The fourth proportional to 809,343.70, 1,214,015.55 and 248,305.30 is: 372,457.95
Step by Step Solution
- Step 1: Write the proportion equation
809,343.70 : 1,214,015.55 = 248,305.30 : x - Step 2: Convert to fraction form
809,343.70/1,214,015.55 = 248,305.30/x - Step 3: Cross multiply
809,343.70x = 1,214,015.55 × 248,305.30 - Step 4: Simplify right side
809,343.70x = 301,446,495,347.42 - Step 5: Solve for x
x = 301,446,495,347.42/809,343.70 - Step 6: Final answer
x = 372,457.95
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1.5x scale
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.