Finding the Fourth Proportional to 1,272,685.79, 1,756,201.87 and 749,313.20
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Solution
The fourth proportional to 1,272,685.79, 1,756,201.87 and 749,313.20 is: 1,033,990.68
Step by Step Solution
- Step 1: Write the proportion equation
1,272,685.79 : 1,756,201.87 = 749,313.20 : x - Step 2: Convert to fraction form
1,272,685.79/1,756,201.87 = 749,313.20/x - Step 3: Cross multiply
1,272,685.79x = 1,756,201.87 × 749,313.20 - Step 4: Simplify right side
1,272,685.79x = 1,315,945,248,382.83 - Step 5: Solve for x
x = 1,315,945,248,382.83/1,272,685.79 - Step 6: Final answer
x = 1,033,990.68
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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.