Finding the Fourth Proportional to 407,709.24, 562,664.78 and 226,421.12
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Solution
The fourth proportional to 407,709.24, 562,664.78 and 226,421.12 is: 312,475.59
Step by Step Solution
- Step 1: Write the proportion equation
407,709.24 : 562,664.78 = 226,421.12 : x - Step 2: Convert to fraction form
407,709.24/562,664.78 = 226,421.12/x - Step 3: Cross multiply
407,709.24x = 562,664.78 × 226,421.12 - Step 4: Simplify right side
407,709.24x = 127,399,185,726.72 - Step 5: Solve for x
x = 127,399,185,726.72/407,709.24 - Step 6: Final answer
x = 312,475.59
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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.