Finding the Fourth Proportional to 1,257,643.52, 1,735,579.24 and 684,715.12
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Solution
The fourth proportional to 1,257,643.52, 1,735,579.24 and 684,715.12 is: 944,923.84
Step by Step Solution
- Step 1: Write the proportion equation
1,257,643.52 : 1,735,579.24 = 684,715.12 : x - Step 2: Convert to fraction form
1,257,643.52/1,735,579.24 = 684,715.12/x - Step 3: Cross multiply
1,257,643.52x = 1,735,579.24 × 684,715.12 - Step 4: Simplify right side
1,257,643.52x = 1,188,377,347,586.11 - Step 5: Solve for x
x = 1,188,377,347,586.11/1,257,643.52 - Step 6: Final answer
x = 944,923.84
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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.