Finding the Fourth Proportional to 747,580.56, 1,031,694.84 and 421,005.84
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Solution
The fourth proportional to 747,580.56, 1,031,694.84 and 421,005.84 is: 581,007.02
Step by Step Solution
- Step 1: Write the proportion equation
747,580.56 : 1,031,694.84 = 421,005.84 : x - Step 2: Convert to fraction form
747,580.56/1,031,694.84 = 421,005.84/x - Step 3: Cross multiply
747,580.56x = 1,031,694.84 × 421,005.84 - Step 4: Simplify right side
747,580.56x = 434,349,552,737.87 - Step 5: Solve for x
x = 434,349,552,737.87/747,580.56 - Step 6: Final answer
x = 581,007.02
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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.