Finding the Fourth Proportional to 421,270.06, 581,178.62 and 294,020.14
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Solution
The fourth proportional to 421,270.06, 581,178.62 and 294,020.14 is: 405,626.31
Step by Step Solution
- Step 1: Write the proportion equation
421,270.06 : 581,178.62 = 294,020.14 : x - Step 2: Convert to fraction form
421,270.06/581,178.62 = 294,020.14/x - Step 3: Cross multiply
421,270.06x = 581,178.62 × 294,020.14 - Step 4: Simplify right side
421,270.06x = 170,878,219,217.41 - Step 5: Solve for x
x = 170,878,219,217.41/421,270.06 - Step 6: Final answer
x = 405,626.31
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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.