Finding the Fourth Proportional to 1,284,205.56, 1,772,216.68 and 774,809.52
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Solution
The fourth proportional to 1,284,205.56, 1,772,216.68 and 774,809.52 is: 1,069,244.99
Step by Step Solution
- Step 1: Write the proportion equation
1,284,205.56 : 1,772,216.68 = 774,809.52 : x - Step 2: Convert to fraction form
1,284,205.56/1,772,216.68 = 774,809.52/x - Step 3: Cross multiply
1,284,205.56x = 1,772,216.68 × 774,809.52 - Step 4: Simplify right side
1,284,205.56x = 1,373,130,355,166.79 - Step 5: Solve for x
x = 1,373,130,355,166.79/1,284,205.56 - Step 6: Final answer
x = 1,069,244.99
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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.