Finding the Fourth Proportional to 915,237.63, 1,372,908.69 and 307,782.18
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Solution
The fourth proportional to 915,237.63, 1,372,908.69 and 307,782.18 is: 461,690.84
Step by Step Solution
- Step 1: Write the proportion equation
915,237.63 : 1,372,908.69 = 307,782.18 : x - Step 2: Convert to fraction form
915,237.63/1,372,908.69 = 307,782.18/x - Step 3: Cross multiply
915,237.63x = 1,372,908.69 × 307,782.18 - Step 4: Simplify right side
915,237.63x = 422,556,829,549.14 - Step 5: Solve for x
x = 422,556,829,549.14/915,237.63 - Step 6: Final answer
x = 461,690.84
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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.