Finding the Fourth Proportional to 615,749.05, 849,748.11 and 343,807.75
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Solution
The fourth proportional to 615,749.05, 849,748.11 and 343,807.75 is: 474,462.75
Step by Step Solution
- Step 1: Write the proportion equation
615,749.05 : 849,748.11 = 343,807.75 : x - Step 2: Convert to fraction form
615,749.05/849,748.11 = 343,807.75/x - Step 3: Cross multiply
615,749.05x = 849,748.11 × 343,807.75 - Step 4: Simplify right side
615,749.05x = 292,149,985,765.85 - Step 5: Solve for x
x = 292,149,985,765.85/615,749.05 - Step 6: Final answer
x = 474,462.75
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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.