Finding the Fourth Proportional to 408,808.14, 564,795.12 and 312,349.59
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Solution
The fourth proportional to 408,808.14, 564,795.12 and 312,349.59 is: 431,531.34
Step by Step Solution
- Step 1: Write the proportion equation
408,808.14 : 564,795.12 = 312,349.59 : x - Step 2: Convert to fraction form
408,808.14/564,795.12 = 312,349.59/x - Step 3: Cross multiply
408,808.14x = 564,795.12 × 312,349.59 - Step 4: Simplify right side
408,808.14x = 176,413,524,166.00 - Step 5: Solve for x
x = 176,413,524,166.00/408,808.14 - Step 6: Final answer
x = 431,531.34
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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.