Finding the Fourth Proportional to 1,388,355.84, 2,082,533.76 and 724,803.84
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Solution
The fourth proportional to 1,388,355.84, 2,082,533.76 and 724,803.84 is: 1,087,205.76
Step by Step Solution
- Step 1: Write the proportion equation
1,388,355.84 : 2,082,533.76 = 724,803.84 : x - Step 2: Convert to fraction form
1,388,355.84/2,082,533.76 = 724,803.84/x - Step 3: Cross multiply
1,388,355.84x = 2,082,533.76 × 724,803.84 - Step 4: Simplify right side
1,388,355.84x = 1,509,428,466,177.64 - Step 5: Solve for x
x = 1,509,428,466,177.64/1,388,355.84 - Step 6: Final answer
x = 1,087,205.76
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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.