Finding the Fourth Proportional to 748,501.80, 1,122,752.70 and 275,125.65
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Solution
The fourth proportional to 748,501.80, 1,122,752.70 and 275,125.65 is: 412,688.48
Step by Step Solution
- Step 1: Write the proportion equation
748,501.80 : 1,122,752.70 = 275,125.65 : x - Step 2: Convert to fraction form
748,501.80/1,122,752.70 = 275,125.65/x - Step 3: Cross multiply
748,501.80x = 1,122,752.70 × 275,125.65 - Step 4: Simplify right side
748,501.80x = 308,898,066,376.76 - Step 5: Solve for x
x = 308,898,066,376.76/748,501.80 - Step 6: Final answer
x = 412,688.48
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1.5x scale
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.