Finding the Fourth Proportional to 1,066,510.75, 1,600,356.59 and 638,995.99
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Solution
The fourth proportional to 1,066,510.75, 1,600,356.59 and 638,995.99 is: 958,847.76
Step by Step Solution
- Step 1: Write the proportion equation
1,066,510.75 : 1,600,356.59 = 638,995.99 : x - Step 2: Convert to fraction form
1,066,510.75/1,600,356.59 = 638,995.99/x - Step 3: Cross multiply
1,066,510.75x = 1,600,356.59 × 638,995.99 - Step 4: Simplify right side
1,066,510.75x = 1,022,621,440,385.09 - Step 5: Solve for x
x = 1,022,621,440,385.09/1,066,510.75 - Step 6: Final answer
x = 958,847.76
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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.