Finding the Fourth Proportional to 1,355,027.94, 1,869,990.95 and 743,206.49
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Solution
The fourth proportional to 1,355,027.94, 1,869,990.95 and 743,206.49 is: 1,025,653.69
Step by Step Solution
- Step 1: Write the proportion equation
1,355,027.94 : 1,869,990.95 = 743,206.49 : x - Step 2: Convert to fraction form
1,355,027.94/1,869,990.95 = 743,206.49/x - Step 3: Cross multiply
1,355,027.94x = 1,869,990.95 × 743,206.49 - Step 4: Simplify right side
1,355,027.94x = 1,389,789,410,281.27 - Step 5: Solve for x
x = 1,389,789,410,281.27/1,355,027.94 - Step 6: Final answer
x = 1,025,653.69
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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.