Finding the Fourth Proportional to 347,681.70, 520,744.95 and 339,905.70
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Solution
The fourth proportional to 347,681.70, 520,744.95 and 339,905.70 is: 509,098.34
Step by Step Solution
- Step 1: Write the proportion equation
347,681.70 : 520,744.95 = 339,905.70 : x - Step 2: Convert to fraction form
347,681.70/520,744.95 = 339,905.70/x - Step 3: Cross multiply
347,681.70x = 520,744.95 × 339,905.70 - Step 4: Simplify right side
347,681.70x = 177,004,176,751.22 - Step 5: Solve for x
x = 177,004,176,751.22/347,681.70 - Step 6: Final answer
x = 509,098.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.