Finding the Fourth Proportional to 405,749.79, 559,929.87 and 224,447.49
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Solution
The fourth proportional to 405,749.79, 559,929.87 and 224,447.49 is: 309,734.86
Step by Step Solution
- Step 1: Write the proportion equation
405,749.79 : 559,929.87 = 224,447.49 : x - Step 2: Convert to fraction form
405,749.79/559,929.87 = 224,447.49/x - Step 3: Cross multiply
405,749.79x = 559,929.87 × 224,447.49 - Step 4: Simplify right side
405,749.79x = 125,674,853,897.53 - Step 5: Solve for x
x = 125,674,853,897.53/405,749.79 - Step 6: Final answer
x = 309,734.86
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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.