Finding the Fourth Proportional to 1,457,163.99, 2,185,929.09 and 782,317.71
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Solution
The fourth proportional to 1,457,163.99, 2,185,929.09 and 782,317.71 is: 1,173,574.87
Step by Step Solution
- Step 1: Write the proportion equation
1,457,163.99 : 2,185,929.09 = 782,317.71 : x - Step 2: Convert to fraction form
1,457,163.99/2,185,929.09 = 782,317.71/x - Step 3: Cross multiply
1,457,163.99x = 2,185,929.09 × 782,317.71 - Step 4: Simplify right side
1,457,163.99x = 1,710,091,039,911.18 - Step 5: Solve for x
x = 1,710,091,039,911.18/1,457,163.99 - Step 6: Final answer
x = 1,173,574.87
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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.