Finding the Fourth Proportional to 809,847.70, 1,214,646.68 and 270,113.40
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Solution
The fourth proportional to 809,847.70, 1,214,646.68 and 270,113.40 is: 405,128.45
Step by Step Solution
- Step 1: Write the proportion equation
809,847.70 : 1,214,646.68 = 270,113.40 : x - Step 2: Convert to fraction form
809,847.70/1,214,646.68 = 270,113.40/x - Step 3: Cross multiply
809,847.70x = 1,214,646.68 × 270,113.40 - Step 4: Simplify right side
809,847.70x = 328,092,344,533.51 - Step 5: Solve for x
x = 328,092,344,533.51/809,847.70 - Step 6: Final answer
x = 405,128.45
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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.