Finding the Fourth Proportional to 809,909.70, 1,214,864.55 and 360,629.70
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Solution
The fourth proportional to 809,909.70, 1,214,864.55 and 360,629.70 is: 540,944.55
Step by Step Solution
- Step 1: Write the proportion equation
809,909.70 : 1,214,864.55 = 360,629.70 : x - Step 2: Convert to fraction form
809,909.70/1,214,864.55 = 360,629.70/x - Step 3: Cross multiply
809,909.70x = 1,214,864.55 × 360,629.70 - Step 4: Simplify right side
809,909.70x = 438,116,238,207.14 - Step 5: Solve for x
x = 438,116,238,207.14/809,909.70 - Step 6: Final answer
x = 540,944.55
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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.