Finding the Fourth Proportional to 408,926.54, 564,349.21 and 236,890.78
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Solution
The fourth proportional to 408,926.54, 564,349.21 and 236,890.78 is: 326,926.99
Step by Step Solution
- Step 1: Write the proportion equation
408,926.54 : 564,349.21 = 236,890.78 : x - Step 2: Convert to fraction form
408,926.54/564,349.21 = 236,890.78/x - Step 3: Cross multiply
408,926.54x = 564,349.21 × 236,890.78 - Step 4: Simplify right side
408,926.54x = 133,689,122,546.18 - Step 5: Solve for x
x = 133,689,122,546.18/408,926.54 - Step 6: Final answer
x = 326,926.99
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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.