Finding the Fourth Proportional to 1,865,765.48, 2,798,638.70 and 728,643.14
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Solution
The fourth proportional to 1,865,765.48, 2,798,638.70 and 728,643.14 is: 1,092,960.99
Step by Step Solution
- Step 1: Write the proportion equation
1,865,765.48 : 2,798,638.70 = 728,643.14 : x - Step 2: Convert to fraction form
1,865,765.48/2,798,638.70 = 728,643.14/x - Step 3: Cross multiply
1,865,765.48x = 2,798,638.70 × 728,643.14 - Step 4: Simplify right side
1,865,765.48x = 2,039,208,890,093.52 - Step 5: Solve for x
x = 2,039,208,890,093.52/1,865,765.48 - Step 6: Final answer
x = 1,092,960.99
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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.